PHP English Letter case Conversion Function Summary

The first letter of each word is converted to uppercase: Ucwords ()

The code is as follows: <?php
$foo = ' Hello world! ';
$foo = Ucwords ($foo); Hello world!

$bar = ' HELLO world! ';
$bar = Ucwords ($bar); HELLO world!
$bar = Ucwords (Strtolower ($bar)); Hello world!
?>

First word capitalized: Ucfirst ()

The code is as follows: <?php
$foo = ' Hello world! ';
$foo = Ucfirst ($foo); Hello world!

$bar = ' HELLO world! ';
$bar = Ucfirst ($bar); HELLO world!
$bar = Ucfirst (Strtolower ($bar)); Hello world!
?>

First word initial lowercase: lcfirst ()

The code is as follows: <?php
$foo = ' HelloWorld ';
$foo = Lcfirst ($foo); HelloWorld

$bar = ' HELLO world! ';
$bar = Lcfirst ($bar); HELLO world!
$bar = Lcfirst (Strtoupper ($bar)); HELLO world!
?>

All letters capitalized: Strtoupper ()
All Letters lowercase: strtolower ()

• 1 strtolower ()//convert string to lowercase
• 2 Strtoupper ()//convert string to uppercase
• 3 Ucfirst ()//converts the first character of a string to uppercase
• 4 ucwords ()//converts the first letter of each word in a string to uppercase

PHP English Letter case Conversion Function Summary