string manipulation substr and trim

Problem

Substituting and trimming string variables in PHP.

Solution

Similar to Perl, PHP has an extensive library of functions.

See the example tab for a few simple examples, showing the basic syntax.

Example

substr

$ php -q<<EOT
<?php

echo(substr("Hello World",0,4)."n");

?>
EOT


Hell

trim

$ php -q<<EOT
<?php
echo(trim("    Hello World    ")."n");
?>
EOT
Hello World

Reference

[tags]PHP substr, PHP trim, PHP Coding School[/tags]

• PHP Docs substr Function
• PHP Docs trim Function