The function strtolower() that converts php strings to lowercase

Example

Convert all characters to lowercase:

<?php
echo strtolower("Hello WORLD.");
?>

Definition and usage

strtolower() function converts a string to lowercase.

Note: This function is binary safe.

Related functions:

• strtoupper() - Convert the string to uppercase

• lcfirst() - Convert the string to uppercase Convert the first character in the string to lowercase

• ucfirst() - Convert the first character in the string to uppercase

• ucwords() - Convert the first character in the string to uppercase Convert the first character of each word in the string to uppercase

Syntax

strtolower(string)

Technical details

Example:

<?php
    $str = "I want To FLY";
    $str = strtolower($str);
    echo $str;
//by www.jbxue.com
?>

i want to fly

The above is the detailed content of The function strtolower() that converts php strings to lowercase. For more information, please follow other related articles on the PHP Chinese website!