How to use php strtolower function

php The strtolower function is used to convert strings to lowercase. The syntax of strtolower is strtolower(string). The parameter string is required and specifies the string to be converted.

php How to use strtolower function?

Function: Convert all characters to lowercase

Syntax:

strtolower(string)

Parameters:

string Required, specifies the string to be converted

Description: The strtolower() function converts a string to lowercase. This function is binary safe.

php strtolower() function usage example 1:

<?php
$i = "HELLO WORLD";
$j = strtolower($i);
echo $j;
?>

Output:

hello world

php strtolower() function usage example 2:

<?php
$i = "I&#39;M STUDY IN PHP.CN";
$j = strtolower($i);
echo $j;
?>

Output:

i'm study in php.cn

This article is an introduction to the PHP strtolower function. I hope it will be helpful to friends in need!

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