Rails and Stuff at Abel killed Cain

Ruby on Rails and other Webdevelopment

PHP 5.3 lambda use case

March 6, 2010 • General

i just thought about iterating objects in php.

Since 5.3 supports lambda, i found this quite usefull:

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class Test {
        public $vals = array();

        function __construct(){
                $this->vals = range(1,10);
        }

        // the hooray goes here!
        function each($function){
                foreach($this->vals as $element){
                        $function($element);
                }
        }
}

$t = new Test;

//the real hooray-part:
$t->each( function( $e ) {
        echo "Hi, i am element $e\n";
});

Works! :)

Ah and yes, for idiots not knowing what happens on execution:

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$ php test.php
Hi, i am element 1
Hi, i am element 2
Hi, i am element 3
Hi, i am element 4
Hi, i am element 5
Hi, i am element 6
Hi, i am element 7
Hi, i am element 8
Hi, i am element 9
Hi, i am element 10

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