strlen – PHP String Functions

Syntax :

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Description :

It’s an inbuilt function of PHP. The strlen() function returns the length of a string.

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Parameter :

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Name, Required /Optional, Value Type, Description

string, Required, String, String to check the length.

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Output :

Returns the length of a string on success, and 0 if the string is empty.

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ChangeLog :

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PHP Version, Description
5.3.0, Prior versions treated arrays as the string Array thus returning a string length of 5 and emitting an E_NOTICE level error.

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Related articles : substr_count(), str_word_count().

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strlen() – PHP Functions Example 1 : Return the length of the string

<?php
echo strlen("Hi from tutorialmines.");
?>

Output of above code in the browser is as below:

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strlen() – PHP Functions Example 2 : Returns 0 if the string is empty.

<?php
echo strlen("");
?>

Output of above code in the browser is as below: