How To Find String Length in PHP - strlen() Function

The strlen() function returns the length of a given string. It returns 0 if the string is empty.

Syntax

strlen(string)

Parameter

  • string (Required) - Specifies the string to check

Example

<?php
$str = 'abcdef';
echo strlen($str); // 6

$str = ' ab xyz ';
echo strlen($str); // 8
?>

Actually, the function strlen() returns the number of bytes rather than the number of characters in a string. So if there are characters that take more than 1 byte, you may not get the actual length.

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