How to Remove Special Character from String in PHP ?
We have given a string and the task is to remove special characters from a string str in PHP. In order to do this task, we have the following methods in PHP:
Method 1: Using str_replace() Method: The str_replace() method is used to remove all the special character from the given string str by replacing these character with the white space (” “).
Syntax:
str_replace( $searchVal, $replaceVal, $subjectVal, $count )
Example :
PHP
<?php// PHP program to Remove // Special Character From String // Function to remove the spacial function RemoveSpecialChar($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 resultecho $str1; ?> |
Example to remove the Special Char
Method 2: Using str_ireplace() Method: The str_ireplace() method is used to remove all the special character from the given string str by replacing these character with the white space (” “). The difference between str_replace and str_ireplace is that str_ireplace is a case-insensitive.
Syntax:
str_ireplace( $searchVal, $replaceVal, $subjectVal, $count )
Example :
PHP
<?php// PHP program to Remove // Special Character From String // Function to remove the spacial function RemoveSpecialChar($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 resultecho $str1; ?> |
Example to remove the Special Char
Method 3: 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, $count )
Example :
PHP
<?php// PHP program to Remove // Special Character From String // Function to remove the spacial function RemoveSpecialChar($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 resultecho $str1; ?> |
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.
