PHP useful techniques

gistfile1.txt

// foreach by default is using value after "as"

foreach( $num_posts as $value ):
	// echo $value."<br>";
endforeach;


// using foreach with key instead of value

foreach( array_keys( $num_posts ) as $key ):
	// echo $key."<br>";
endforeach;


// to do something specific to the key may use
// Reference: http://stackoverflow.com/questions/7225070/php-array-delete-by-value-not-key

foreach( array_keys( $num_posts ) as $key ):
	// echo $key."<br>";
	if(($key = array_search($del_val, $num_posts)) !== false) {
        unset($num_posts[$key]);
    }
endforeach;

// force to display errors
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);