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C check string for special characters

C check string for special characters. If both strings contain special characters, you can also put string1 through the filterBy function. matches("[a-zA-Z. Sep 30, 2014 · mysql_real_escape_string() calls MySQL's library function mysql_real_escape_string, which prepends backslashes to the following characters: \x00, \n, \r, \, ', " and \x1a. Given string str of length N, the task is to check if the given string contains only special characters or not. Similarly, the values for “a” and “z” in lowercase are 97 and 122, respectively. Therefore, the required output is GEEksfOrGEEks. Feb 19, 2018 · Dim pattern As String = "[^a-zA-Z0-9\s]" Dim regex As New Regex(pattern) Return regex. a Tab is written as `t. will also match. Examples: Input: str = “@#$&amp;%!~”Output: YesExplanation: Given string contains only special characters. To match the word "250000", the regular expression would be \b250000\b. Sep 22, 2021 · I've tried to use the setlocale funcion in several different ways, without any positive result. IsMatch() method, which tells whether this Jan 16, 2012 · Is there a function I can apply to a string that will return true of false if a string contains a character. Characters in the GSM charset will be grey, while Unicode special characters will be highlighted in red. A space is not a graphic character, even though it is a printing character. Then, something like: "\"hello \" world \"" == "\"hello world ". The regex you mention in the comments. We decided to use Nvarchar to store some information in some tables, the reason is that we assumed that we will have a lot of special characters since the database contains French and German data. Wouldn't either of these last two mthods check the string character by character until either lowercase or uppercase is found as defined in the if statements? I'd Dec 5, 2023 · Given string str, the task is to convert all the vowels present in the given string to uppercase characters in the given string. It's either "why doesn't my code work" or "give me code that works". The code for this article is available on GitHub. std::cout << "match found\n"; Oct 25, 2012 · Alternatively, you can use this regex to match any string containing only alphanumeric characters, hyphens, underscores and apostrophes. RegularExpressions; class Program { static void Main() { string inputString = "Hello@World#$123"; // Define the pattern for special characters string pattern = "[^a-zA-Z0-9]"; // Use Regex to replace special Aug 6, 2015 · I have below country names which contains some special characters. Jul 29, 2013 · I'm not allowed to use RegEx because he hasn't taught that to us yet well I couldn't attend class on the day he taught these loops and character checking, so now he won't tell me more. Finally, check if the c value is greater than zero then print Character classes. A wide string literal may contain the escape sequences listed above and any universal character name. #include <iostream>. ) answered Oct 16, 2012 at 2:15. PARAMETERS: pa_test TYPE char40. A simple example should be helpful: Target: extract the substring between square brackets, without returning the brackets themselves. works because this version of the constructor takes a char array; if you try to just pass "0\0" "0" as a const char*, it will treat it as a C string and only copy everything up until the null character. This can be done using the Regex. Jun 11, 2023 · The regex pattern ‘/ [^a-zA-Z0-9\s]/’ matches a string that contains at least a character which is not a letter or number or a white space character. You will need to write a util method for this. ") return Str. IsMatch(username); If I provide username as $%^& asghf then the validator gives as invalid data format which Nov 17, 2014 · 1. Import the string module in Python, which contains a string called punctuation that includes all special characters. Array some () method. Because find_first_not_of returns an index not a character, you must declare special as size_t not char . Feb 10, 2023 · String is not accepted. Firstly, there are two ways to interpret this kind of question. Step #1 Copy and paste a text message into the empty box. This C program allows the user to enter a string (or character array). To define a special character in PowerShell you need to use the backtick character (See: About Special Characters), e. The test() method will return true if the string contains at least 1 special character and false otherwise. private bool IsValidFormat(string str) { Regex rgx = new Regex(@"^[A-Za-z]+\d+. The d string contains the special character in between. Method 1: Using Character class. But at first, you must get rid of the special characters, it will be possible with help of Regex: string a2 = "h2$#%# is a good guy"; Mar 18, 2024 · When we use the read command in a shell script without any options, it will carry out some operations on the special characters like whitespaces, backslashes, and continuation lines. For example, let’s write a simple command in the terminal that reads a string and then prints its lines: #!/bin/sh. If it returns 1, then it means this string has a special character in it. Sometimes the string that I read is written in a good as I want, but in this case, the constant strings (hardcoded in the program) are written with strange characters, and vice-versa. Therefore, the output is Yes. 0. Previosly I harcoded it with regular expression charset, but now list of chars expanded and its not an option Nov 30, 2022 · Example#. Is there any regular expression that can match all these conditions ? Here is the code I am using for this . isnumeric() or . Also, it can be empty or can have a single letter. Let’s start coding… App. for character in my_string if not (character. Using '-' can lead to implementation defined behavior. You can work with the string directly. Text. Note that isgraph(), isprint(), iscntrl() are other character classifying functions, as well as isalpha(), islower(), isupper(), isdigit(), isalnum Sep 15, 2020 · bool cResult = ContainsSpecialChars(c); bool dResult = ContainsSpecialChars(d); In the example above, the first three strings start or end with a special character. So to start with, you can use the "word boundary" pattern \b. Jul 20, 2013 · 1. Jan 11, 2014 · How to check a string that contains special characters such as _ . I have strings with one or more character options such as: var abc = "s"; var def = "aB"; var ghi = "Sj"; What I would like to do for example is have a function that would return true or false if the above contained a lower or upper case . Regex objAlphaPattern = new Regex(@"[a-zA-Z0-9_@. , new { Old = " ", New = "-" } Charseparated = Charseparated. For it to work correctly, you need to be clear what it means A wide string literal is a null-terminated array of constant wchar_t that is prefixed by ' L ' and contains any graphic character except the double quotation mark ( " ), backslash ( \ ), or newline character. REP. If the result is None then the output will be ” String does not contain Special Characters” else the output will be “String contains Special Characters”. ")' ip. regex. , ( ) & ^ % $ # @ ! * in my string? I tried to create a regular expression validator for checking the string as follows. _-]+$/ The added ^ and $ match the beginning and end of the string respectively. Pattern; This code is great for telling of the string passed in contains only a-z and 0-9, it won't give you a location of the 'bad' character or what it is, but then the question didn't ask for that. isalpha() and character != "_") print(" \(character)is special" Nov 3, 2022 · Using contains () method. If I use the following function it will return true for all these examples. One of the most efficient method to check for special characters in a string is by using regular expressions with the preg_match () function. Old, r. To search a utf-8 encoded string for æ you could use. Sep 21, 2011 · 0. OF THE; COTE D’IVOIRE; GUINEA–BISSAU; KOREA, REPUBLIC OF (SOUTH) So, I wrote a regular expression to validate that a country name that must not contain any numeric and special characters other than ,. 2. Base string: This is a test string [more or less] Jan 16, 2018 · for fixed string matching, avoid regex and use index - it returns position of match and 0 if no match is found awk 'index($8, "ExAC_ALL=. Also, in general C does not know about characters, it only knows about bytes. Your requirements also specify that the word can "contain" characters that are "special". Dec 19, 2012 · If you need to check whether a string consists of nothing but those characters you have to anchor the expression as well: var pattern = /^[a-zA-Z0-9&. Oct 19, 2022 · 10-19-2022 03:32 AM. But this is not the case for PowerShell. findInLine("[^" + REGULAR_CHARACTERS + "]+"); scanner. May 5, 2015 · I have two strings "CZSczs" - "ČŽŠčžš" and I want to return true when I compare the strings. \* \\ escaped special characters \t \n \r: tab, linefeed, carriage Aug 3, 2021 · I'm trying to check if the string from the main function parameter string argv[] is indeed a number, I searched multiple ways. Oct 23, 2021 · This code helps to check whether the string contains a special character or not, new Regex(“[^A-Za-z0-9]”) and this helps to check whether the string consists of special charaters or not. 10-19-2022 04:25 AM. However the only thing is there is likely no default C# library or function that already does this out of the box, well if this is what you wanted. The following escape sequences are available: Nov 13, 2013 · find_first_not_of returns the index of the found character, or the special value string::npos if no character is found. bool isOk = Regex::IsMatch(firstname, "^[a-zA-Z]+$"); This is the name field in registration form. Special character also contains the white space. any character except newline \w \d \s: word, digit, whitespace \W \D \S: not word, digit, whitespace [abc] any of a, b, or c [^abc] not a, b, or c [a-g] character between a & g: Anchors ^abc$ start / end of the string \b: word boundary: Escaped characters \. Swift’s String and Character types provide a fast, Unicode-compliant way to work with text in your code. I have created a regex validator to check for special characters means I donot want any special characters in username. }; I am making you write in all the characters you need to check for, because you need to To find special characters in a string in PowerShell, you can use the -Match operator and a regular expression (regex) pattern that matches special characters. int main (int argc, char *argv[]) {. After extracting some of the data, we estimated the full run to have and extreamlly huge size (20 TB) Oct 8, 2021 · Your requirements specify that you want to match on a "word". Iterate through each character in the string. the custom specialChars () function uses the preg_match () function to check if the input string contains any character that is not a letter (a-z A-Z) or a number (0 Nov 27, 2020 · You can use ispunct() from <ctype. Because all the characters in your search set have special meanings in regular expressions, you'll need to escape all of them. And then it will check, how many numbers of Alphabets, digits, and Special Character inside that string. By special characters I mean hyphen - or slash / May 7, 2024 · Conclusion. def check_splcharacter(test): # Make own character set and pass. It returns true if it finds a match, otherwise, it returns false. This code checks whether it's I want to know if there is a way to check for special characters in a string. Aug 13, 2020 · Given a string str[], the task is to check whether the string contains any special character and if the string have a special character then print “The String is not accepted” else print “The string is accepted”. Here's an example of using the -Match operator and a regular expression to find special characters in a string: Aug 3, 2016 · If the string contains any special character, the generated excel sheet appeared as corrupted. A string can contain Uppercase letters, Lowercase letters, or numbers of special characters. Sep 29, 2021 · The title of the question is ambiguous, but the text says that the specific character should be "somewhere after" the special character. txt, and the % characters too. Step #2 Identify the different symbols in your SMS message. As per the title of the blog, we need to find out the number of alphabets, digits and special characters given in the string. exclamationCheck = 1. To my knowledge, there is no built-in function to do it, like . Examples: Input: str = “GeeksforGeeks”Output: GEEksfOrGEEksExplanation:Vowels present in the given string are: {'e', 'o'}Replace 'e' to 'E' and 'o' to 'O'. The primary condition won't work here as there is a list of characters. To compare string, use string. Then what happened is that all the text from other languages except from English is also encoded. Replace(Input, @"([ a-zA-Z0-9_]|^\s)", ""); Where Input is the string which we need to replace the characters. A special character may be a single byte - æ in iso8859-1 encoding is \xe6, for example - or it may be more than one byte: the same character in utf-8 encoding is the 2-byte sequence \xc3\xa6. The regex pattern that we can use is as follows, Copy to clipboard. Apr 7, 2024 · There are several methods to determine whether the given string is alphanumeric (consists of only numbers and alphabets) in C#: 1. FROM table1. Upon observation, it is seen that: Alphabets: 4 Oct 9, 2013 · 0. Case 1: Digits OR Special characters. zlv_length = syst-index - 1. IsMatch(str); } It is working for point# 1 and 2 above but it is allowing special characters. So what I did is encode string before writing the excel sheet. Examples: Input : str = "geeks for geeks121" Output : Vowels: 5 Consonant: 8 Digit: 3 Special Character: 2 Input : str = " A1 B@ d adc" Output : Vowels: 2 Consonant: 4 Digit: 1 Special Character: 6 C/C++ May 31, 2021 · In this approach, We will use ASCII values to check whether characters of a String contain any special character or not. 3. CONGO, DEM. kiss= ' Keep \. Case 2: Everything else (characters) I'm aware of the isdigit() function but it only recognized digits and not special characters. "; The solution to avoid this problem, is to use the backslash escape character. Make a collection of changes to make and iterate over it: { new { Old = "*", New = string. Otherwise, print “No”. Swift strings are represented by the String type. Same case with $: the preceding subpattern should match right at the end of the string. To use special characters in a regular expression the simplest method is usually to escape them with a backslash, but as noted above, the backslash itself needs to be escaped. string inputString = "asdf1!%jkl(!*"; List<char> charsToCheckFor = new List<char>() { '!', '@', '#', . ANYWAY, if there's a more efficient way without using RegEx, that'd be helpful. Let’s implement the same in Java and check whether a string contains a special character or not: Oct 4, 2021 · In one of the overloaded versions, the find () function accepts a character as an argument and returns the character’s position in the string. Example: #include <stdio. The approach is as follows: Iterate through all the characters of the string. For example, I've tried these options: “[^A-Za-z0-9 ]” will match strings made up of characters other than alphanumeric and blank spaces i. *$"); return rgx. It should allow Japanese characters. public bool isVowel(char charValue){. Allocated in alphabetical sequence, the values for “A” and “Z” are 65 and 90, respectively, in uppercase. Equals method. ? ]*") That will evaluate to true if every character in the string is either a lowercase letter a-z, an uppercase letter A-Z, a period, a question mark, or a space. Strings - Special Characters. As @thelatemail pointed out in the comments you can use: which will result in TRUE or FALSE for each value in your vector. If you want to only detect whether at least one match was found, use std::regex_search. using System; using System. "Very strong" if password has 8 or more characters and contains numbers, alphabets and special characters. \t define a tab. Approa Aug 31, 2015 · When using ^ the regex engine checks if the next subpattern appears right at the start of the string (or line if /m modifier is declared in the regex). Jun 8, 2015 · If a character is not numeric, a space, or is A-Z, then it is special. Sep 26, 2009 · The general answer to this kind of question in C is that you do what would be done behind the scenes in a language with elaborate string handling: you examine each character and process it in open code. This includes Unicode characters above the Basic Multilingual Plane (> 0xFFFF) which includes emoji characters such as the thumbs up ( `u{1F44D} ) character. Because strings must be written within quotes, C will misunderstand this string, and generate an error: char txt [] = "We are the so-called "Vikings" from the north. zlv_times = STRLEN( zls_special ). isdigit() For example, with an entry Tes Apr 8, 2024 · 1. Feb 9, 2024 · Escape sequences are used to represent certain special characters within string literals and character literals. If any special character is found then increment the value of c. " Also, I've tried string::find_first_of() in place of find() but the results were not good either. The idea is to use the regular expression ^[a-zA-Z0-9]*$, which checks the string for alphanumeric characters. Jan 17, 2019 · you need to import the correct Matcher and Pattern. If there is a match it returns the character that matched otherwise it returns None. Let’s use this to check if a string contains the given character. GSM characters will be displayed in grey, Unicode characters Nov 29, 2023 · Given a string and the task is to count vowels, consonant, digits and special character in string. strstr(s, "\xc3\xa6") Strings - Special Characters. Example 1: Copy to clipboard. '-() I wrote below regex Apr 23, 2018 · If you know the characters you do not want to match then you can negate the pattern [^characters to not match] to find out whether there are any other characters: For example: SELECT LISTAGG( a, '' ) WITHIN GROUP ( ORDER BY ROWNUM ) AS matches. C++. So, we can use this regex pattern with the preg_match function () to check if string contains a special character. js Nov 20, 2022 · I'm going to offer four cents here (two opinions). If the character doesn’t exist in the string, then it returns string::npos. Jul 5, 2019 · The backslash is used to define a special character in a Regular Expression, as e. How can I check if a string has two or all three? Feb 17, 2023 · Check if a string consists only of special characters; Check if uppercase characters in a string are used correctly or not; Check if frequency of each character is equal to its position in English Alphabet; Program to count vowels, consonant, digits and special characters in string. Having said that, there are now two ways to process each character: use a multi-way if or index a string of valid characters, probably with Nov 11, 2021 · A string is a data structure that contains a set of characters. I found in another topic How can I check if a string has special characters in C++ effectively?, on the solution posted by the user Jerry Coffin: Jun 23, 2017 · 7. It can be a word or can be a sentence. In this article, we will learn how to check if a String contains only lowercase letters in Java. line2[count2] = '\0'; As far as your original assignment goes, it is not necessary to create a copy of the string to check if it is a palindrome: all you need is a function that finds the next non-empty, non-punctuation character in a Aug 16, 2014 · In either case, use std::regex to create the regular expression object. Jun 20, 2019 · It must not contain any special characters. Jan 10, 2019 · I want to check is some string contains ANY special symbol from UNICODE charset or not. A string is a series of characters, such as "hello, world" or "albatross". Feb 17, 2015 · You can use a Scanner to find the invalid characters in your String: Scanner scanner = new Scanner(string); String specialCharacters= scanner. util. . Note : number 3 is the code used in my logic ,you have to edit it for your case. special characters. Otherwise, print “ No”. g. Apr 12, 2023 · Check if a string consists only of special characters. Aug 3, 2012 · "special characters" include ']', '^', '-', '\"'which has their peculiarities in a scan set. Oct 16, 2012 · You can write: string. Loop through each position of the character array and if you have a special character then just replace it with something else using a switch-case. Jan 18, 2023 · Given string str of length N, the task is to check if the given string contains only special characters or not. In your case, you want to check the existence of the special character from the set anywhere in the string. int i, flag; for (i=0, flag = 1; argv[1][i] != '\0'; i++) Apr 29, 2016 · 5. #include <iterator>. Then using for loop and if statements check for special characters. To match backslashes, you need to double escape, resulting in four Dec 12, 2012 · The above will only allow strings consisting entirely of characters on the ranges a-z, A-Z, 0-9, plus the hyphen an space characters. Simply scan through each character of the string and if a character is found which is not an uppercase or lowercase alphabet, break out of the loop marking a flag. ^[a-zA-Z0-9\-'_]$. #include <algorithm>. The backslash ( \) escape character turns special characters into Because strings must be written within quotes, C++ will misunderstand this string, and generate an error: string txt = "We are the so-called "Vikings" from the north. If you need a string of 10 characters, you need to create a string which can store 11 characters ( the extra character for the null character '\0' ) So, change your code to. Finally, check if the c value is greater than zero then print Feb 10, 2023 · String is not accepted. Nov 17, 2013 · Basically, you iterate over your string and check for uppercase characters. Empty } // all your other replacements, removed for brevity. So if the input string matches the “[^A-Za-z0-9 ]” pattern it means it contains at least one character. char str[100]; Sep 7, 2013 · I have only just written such a function, and an extended version to restrict the first and last characters when needed. IsMatch(input) End Function`. txt for passing string from shell, use environment variable instead of -v option, this will prevent backslash interpretations Apr 15, 2015 · You'll need to double up the \ characters when declaring anything literal in a string, such as say echo C:\\myfile. bool a = isVowel('A');//example method call. A string containing any other character will cause the alert . e. NET. string Output = Regex. Use it in your Code : If ContainsSpecialCharacters ("yourtext") Then str = ("Special character is not allowed in text. You are null-terminating your second string at the original length: line2[length] = '\0'; should be. The way you're doing it: std::string ("0\0" "0", 3) // String concatenation. In this program, we are using the alphabets and digits directly inside the Else If Statement. As we have already given all ranges of ASCII values of special characters in the above table, we have to check for each range of ASCII values in the Java program. IF pa_test CA zls_special. Examples: Input : str = "geeks for geeks121" Output : Vowels: 5 Consonant: 8 Digit: 3 Special Character: 2 Input : str = " A1 B@ d adc" Output : Vowels: 2 Consonant: 4 Digit: 1 Special Character: 6 Dec 6, 2013 · Hence your code will be always false if you compare two different variables (and string won't be interned but it is a different story). If the string contains only special characters, then print “ Yes”. It is found to be none of the above signifying special characters. Characters arrays ( also known as C strings ) are null terminated, so you need an extra index in the array to store the null character. I need to check if the string contains or doesn't contains special characters. The string that is entered here is as follows: “hello1234!@#$%”. isnumeric() and character. Mar 15, 2013 · 1. h>. You can use "IsVowel" as you wanted. There is a function called IsMatch() which return true when the string consists of special characters. Share Dec 22, 2010 · 7. This works as I need to extract from a string a set of characters which are included between two delimiters, without returning the delimiters themselves. For example, insert a space where the second upper case character is found and then use the ToLower method on the whole string Nov 29, 2014 · Here all the special characters except space, comma, and ampersand are replaced. Dec 31, 2014 · Further reading: Escaping a backslash with a backslash in R produces 2 backslashes in a string, not 1. h> to find printing characters that are graphic characters but not letters or digits. I do not intent to send this data to a mysql query nor do I have a current connection to any SQL server, just want it cleaned in a simple CLI C program running in a linux Nov 12, 2019 · "Strong" if password has 8 or more characters and contains numbers and alphabets. Check if a given string is made up of two alternating characters Jun 18, 2022 · The test() method searches a string for a match with a regular expression. In this example, we will check string contain special characters or not and print in console and page. So this is why I need to identify whether the string contains those special characters. To summarize, the range of ASCII values for capital letters spans from 65 to 90, while for small letters, it extends from 97 to 122. -]"); bool sts = objAlphaPattern. If you consider spaces to be special characters, add a Apr 27, 2015 · 4. If the string contains only special characters, then print “Yes”. Basically, my string sometimes can contains any other language apart from English, if that is the case, I need to ignore a set of code. (And to false otherwise, of course. Feb 21, 2007 · This code will do the job (just add you special characters to the 'zls_special': DATA: zls_special TYPE string VALUE '!@#$%', zlv_length TYPE i, zlv_times TYPE i. If a special character is found, print “String is not accepted”. The following is the code. Check if the character is in the punctuation string. As you can see, I know how to check if a string has either one of the three types of characters. Using Regular Expression. Because strings must be written within quotes, Java will misunderstand this string, and generate an error: String txt = "We are the so-called "Vikings" from the north. The backslash ( \) escape character turns special characters into string characters: Escape character. Feb 20, 2023 · Given a string and the task is to count vowels, consonant, digits and special character in string. close(); return specialCharacters; The findInLine returns a String with all characters not included in the constant (all special characters). WHERE REGEXP_LIKE( a, '[^a-z0-9, ]', 'i' ) Results: Jan 31, 2019 · return 0; } Output is match. # this as argument in compile method. The non-regex way (which sounds much easier) it to make a list of characters you want to check and use Linq to find the count of those characters. I thought to use an array but I cannot understand how to implement a check if the string contains one of the items from array. You can also omit space, comma and ampersand by the following regular expression. New); No, it is the exact same OP does, but then less repetitive. Here is a list of escape sequences. Alongside we will be checking each character for being a letter, a digit, or whitespace using the java character class. Nov 21, 2023 · Here is the code to learn How to remove special characters from a string in C# using Regular Expressions. Matcher; import java. This code also works if you add an arbitrary number of characters to specialChars. char arr[11] = "''''''''''"; May 6, 2024 · This special character was added in PowerShell 6. The original function merely checks whether or not the string consists of valid characters only, the extended function adds two integers for the numbers of valid characters at the beginning of the list to be skipped when checking the first and last characters, in practice it Nov 26, 2015 · With find(), my test output always defaults to "Lowercase character found. By passing this regex pattern and the string to the preg_match () function, we can determine if the given string contains any Special Character. DO zlv_times TIMES. Then you can add logic as to what to do with the place where there is an uppercase character. I'd write my own answer, but I think some mods to this one would be a better way to go. I tried with string comparison but it doesn't work. Characters will automatically be displayed in the results box. '/ [^a-zA-Z0-9s]/'. Jan 17, 2019 · Short of nesting thousands of if-statements to also detect non alphanumeric characters, this is a solution that works: (I am assuming that Text can be iterated over, using range-based for-loops) You can use std::find_if. 4. [^a-zA-Z0-9-'_] matches a string that contains any character except those that are allowed (you might need to escape the hyphen, though). May 31, 2024 · Approach 1: Using Regular Expressions. You can also use: which will check for any value that is not a letter or a number. Another way to check if a string contains special characters is with the Array some() method: const specialChars =. isspace() and character. Method: To check if a special character is present in a given string or not, firstly group all special characters as one set. The contents of a String can be accessed in various ways, including as a collection of Character values. May 21, 2020 · Hi All I have a string, and I want to check if the string contain anything other than the English Alphabets, Numbers, and Special Characters . SEARCH pa_test FOR zls_special+zlv Mar 3, 2024 · To check if a string contains special characters, call the test() method on a regular expression that matches any special character. You can add sum() to the beginning of the statement to get the total number of these cases. Replace(r. import java. Jun 3, 2024 · Firstly, you need to enter a particular string of your own choice, as per the given example above. The Unicode escape sequence ( `u{x}) allows you to specify any Unicode character by the hexadecimal representation of its code point. private bool ContainsSpecialChars(string value) {. If you are looking for a laconic one liner, then you could follow @melpomene's approach: int exclamationCheck = strchr(str, '!') != NULL; If you are not allowed to use methods from the C String Library, then, as @SomeProgrammerDude suggested, you could simply iterate over the string, and if any character is the exclamation Jun 25, 2023 · To check if a string contains any Special Character in PHP, we can utilize regular expressions. mh pj aq bj kx lr gm rl sg hc