strtolower(): to change all upper case chars to lower case
Convert ASCII letters to lowercase
strtolower() converts ASCII A-Z to lowercase. In current PHP this conversion is locale-independent; use mb_strtolower() when non-ASCII Unicode letters also need case conversion.
$value = 'PHP Tutorial 2026';
echo strtolower($value); // php tutorial 2026Start with this current pattern. The examples below are retained, corrected where necessary, and expanded for additional variations and output.
$my_str="Hello welcome to plus2net.com";
$my_str=strtolower($my_str);
echo $my_str;hello welcome to plus2net.com$val=strtolower($input_sting);DEMO
Example 1: Converting Mixed Case String
<?php
$str = "HELLO World!";
echo strtolower($str); // Output: hello world!
?>Example 2: Handling String with Numbers
<?php
$str = "PHP 101: Programming";
echo strtolower($str); // Output: php 101: programming
?>Example 3: Converting a Sentence with Mixed Characters
<?php
$str = "PHP is Fun, but ALSO CHALLENGING!";
echo strtolower($str); // Output: php is fun, but also challenging!
?>Example 4: Converting a Multi-Line String
<?php
$str = "This is LINE 1\nTHIS IS LINE 2\n";
echo strtolower($str); // Output: this is line 1\nthis is line 2\n
?>String Functions first letter of every word to capitalize by using ucwords Change all alphabetic chars to Upper case Checking all lower case or upper case chars in a string
Subhendu Mohapatra
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| fahim | 01-01-2013 |
| good code | |
