In this article, we will see how to remove special characters from strings in PHP, along with understanding their implementation through the examples. We have given a string and we need to remove special characters from string str in PHP, for this, we have the following methods in PHP:
Using str_replace() Method: The str_replace() method is used to remove all the special characters from the given string str by replacing these characters with the white space (” “).
Syntax:
str_replace( $searchVal, $replaceVal, $subjectVal, $count )
Example: This example illustrates the use of the str_replace() function to remove the special characters from the string.
PHP
<?php // PHP program to Remove // Special Character From String // Function to remove the special function RemoveSpecialChar($str) { // Using str_replace() function // to replace the word $res = str_replace( array( '\'', '"', ',' , ';', '<', '>' ), ' ', $str); // Returning the result return $res; } // Given string $str = "Example,to remove<the>Special'Char;"; // Function calling $str1 = RemoveSpecialChar($str); // Printing the result echo $str1; ?> |
Output:
Example to remove the Special Char
Using str_ireplace() Method: The str_ireplace() method is used to remove all the special characters from the given string str by replacing these characters with the white space (” “). The difference between str_replace and str_ireplace is that str_ireplace is case-insensitive.
Syntax:
str_ireplace( $searchVal, $replaceVal, $subjectVal, $count )
Example: This example illustrates the use of the str_ireplace() method to remove all the special characters from the string.
PHP
<?php // PHP program to Remove // Special Character From String // Function to remove the special function RemoveSpecialChar($str){ // Using str_ireplace() function // to replace the word $res = str_ireplace( array( '\'', '"', ',' , ';', '<', '>' ), ' ', $str); // returning the result return $res; } // Given string $str = "Example,to remove<the>Special'Char;"; // Function calling $str1 = RemoveSpecialChar($str); // Printing the result echo $str1; ?> |
Output:
Example to remove the Special Char
Using preg_replace() Method: The preg_replace() method is used to perform a regular expression for search and replace the content.
Syntax:
preg_replace( $pattern, $replacement, $subject, $limit, $count )
Example: This example illustrates the use of the preg_replace() method where the particular or all the matched pattern found in the input string will be replaced with the substring or white space.
PHP
<?php // PHP program to Remove // Special Character From String // Function to remove the special function RemoveSpecialChar($str){ // Using preg_replace() function // to replace the word $res = preg_replace('/[^a-zA-Z0-9_ -]/s',' ',$str); // Returning the result return $res; } // Given string $str = "Example,to remove<the>Special'Char;"; // Function calling $str1 = RemoveSpecialChar($str); // Printing the result echo $str1; ?> |
Output:
Example to remove the Special Char
PHP is a server-side scripting language designed specifically for web development. You can learn PHP from the ground up by following this PHP Tutorial and PHP Examples.
