Test preg_replace PHP function online

This tool allows you to simply test the PHP function preg_replace. This function allows you to replace strings that match the pattern specified by a string using certain data extracted from this string.

Data

class="example_1" class="example_5"

Pattern

/class="example_(.*?)"/

Replacement

class="new_example_$1"

Test

You can find a small documentation of the patterns on the page of PHP function preg_match.