Hello Friends Today, through this tutorial, I will tell you How do you check if a string contains special characters in PHP With Example? To check if a string contains special characters in PHP, you can use regular expressions. Here’s a simple example using `preg_match()` function:
<?php
$string = "Hello! How are you?";
if (preg_match('/[\'^£$%&*()}{@#~?><>,|=_+¬-]/', $string)) {
echo "String contains special characters.";
} else {
echo "String does not contain special characters.";
}
?>
In this example, the regular expression `/[\’^£$%&*()}{@#~?><>,|=_+¬-]/` checks for the presence of any special characters within the string. If a match is found, it means the string contains special characters, and the corresponding message will be echoed. Otherwise, if no match is found, the message indicating the absence of special characters will be displayed.
Feel free to modify the regular expression pattern based on your specific requirements for what constitutes a special character.