How to remove comma from string using PHP

You can use str_replace() function to remove comma from a string. str_replace() is a PHP built-in function.

Similarly str_replace() function, you can use preg_replace() function to eliminate comma. But this approach is bit complex compare to former one.

Basic syntax

str_replace('substring', 'replaced_string', 'original_string');

Or

preg_replace('substring', 'replaced_string', 'original_string');

We need to provide three parameters for both methods.

1. Substring is the first parameter which should be replaced with replaced_string.

2. Replaced_string will replace the substring.

3. Original_string will contain the full string from where you want to remove comma.

In the placement of parameters, you can use PHP variables.

Discussion and examples

Example 1: By using str_replace() function

<?php
//input string
$string = 'This is my example string, i want to remove comma from here, and I am using str replace function.';            
//removing all comma
$strings = str_replace( ',', '', $string );
//showing result
echo $string;
?>

Output:

This is my example string i want to remove comma from here and I am using str replace function.

Example 2: By using preg_replace() function

<?php
//input string
$string = 'This is my example string, i want to remove comma from here, and I am using preg replace function.';            
//removing all comma using regex
$string = preg_replace('/[,]/','',$string);
//showing result
echo $string;
?>

Output:

This is my example string i want to remove comma from here and I am using preg replace function.

Both str_replace() and preg_replace() work almost similarly, but first one can works only for fixed value, while second one has more flexible application.