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

?>

---