String Formatting : length, count and occurrences in PHP

 

Lower to Upper

<?php
$str = "Mary Had A Little Lamb and She LOVED It So";
$str = strtoupper($str);
echo $str; // Print ==> MARY HAD A LITTLE LAMB AND SHE LOVED IT SO
?>
 
Upper to Lower
 
<?php
$str = "Mary Had A Little Lamb and She LOVED It So";
$str = strtolower($str);
echo $str; // Print ==> mary had a little lamb and she loved it so
?>
 
Capitalise First Character
 
<?php
$foo = 'hello world!';
$foo = ucfirst($foo);
echo $foo; // Print ==> Hello world!
?>
 

Capitalise Each Word
 
<?php
$foo = 'hello world!';
$foo = ucwords($foo);
echo $foo; // Print ==> Hello World!
?>
 
String Length
 
<?php
$str = 'abcdef';
echo strlen($str); // Print ==> 6
?>
 
String Count
 
<?php
$text = 'This is a test';
echo substr_count($text, 'is'); // Print ==> 2
echo substr_count($text, 'is', 3, 4); // the text is reduced to 's is', so it print ==> 1
?>
 
String Occurrences
 
<?php
$email  = 'name@example.com';
$domain = strstr($email, '@');
echo $domain; // print ==> @example.com
?>


 

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