w3resource

PHP: strrchr() function

Description

The strrchr() function is used to find the position of the last occurrence of a string within another string (main string).

Version:

(PHP 4 and above)

Syntax:

strrchr(main_string, search_string)

Parameters:

Name Description Required /
Optional
Type
main_string The string to be searched in. Required String
search_string The searched string. Required String

Return value:

The portion of string, or FALSE if search_string not found.

Value Type: String.

Example:

<?php
$main_string='The strrchr() function find the position of the last occurrence of a string within another string....';
echo strrchr($main_string, 'string');
?>

Output:

string....

View the example in the browser

See also

PHP Function Reference

Previous: strncmp
Next: strrev



PHP: Tips of the Day

PHP: Using str_replace so that it only acts on the first match?

Can be done with preg_replace:

function str_replace_first($from, $to, $content)
{
    $from = '/'.preg_quote($from, '/').'/';

    return preg_replace($from, $to, $content, 1);
}

echo str_replace_first('abc', '123', 'abcdef abcdef abcdef'); 
// outputs '123def abcdef abcdef'

The magic is in the optional fourth parameter [Limit]. From the documentation:

[Limit] - The maximum possible replacements for each pattern in each subject string. Defaults to -1 (no limit).

Ref : https://bit.ly/35SCuP8