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PHP: strchr() function

Description

The strchr() function is used to get the first occurrence of a string inside another string. The function is an alias of strstr().

Version:

(PHP 4 and above)

Syntax:

strchr(string_name, search_string, before_search)

Parameters:

Name Description Required /
Optional
Type
string_name The input string. Required String
search_string The string to search for. Required Mixed
before_search If TRUE, strstr() returns the part of the string_name before the first occurrence of the before_search. Optional Boolean

*Mixed: Mixed indicates that a parameter may accept multiple (but not necessarily all) types.

Return value:

Returns the portion of string, or FALSE if is not found

Value Type: string

Pictorial Presentation

php-string-strchr()

Example:

<?php
$string1="W3RESOURCE.COM";
$newstring=strchr($string1,".");
echo $newstring;
?>

Output:

.COM 

View the example in the browser

See also

PHP Function Reference

Previous: strcasecmp
Next: strcmp



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