grinder:  This will recurse endlessly until the heat death of the universe or you run out of swap, whichever comes first. Then again, perhaps the PHP implementation does as well.

PHP's print_r (522) does indeed detect recursion after the first loop: 
<?php
 $r1 = array( 1 );
 $r2 = array( 2, &$r1 );
 array_push( $r1, &$r2 );

 print_r($r1);
?>

[download]

This will result in the following output: 
(
    [0] => 1
    [1] => Array
        (
            [0] => 2
            [1] => Array
                (
                    [0] => 1
                    [1] => Array
 *RECURSION*
                )

        )

)

[download]

Regards

mwa

In reply to Re^2: print_r by mwah
in thread print_r by GhodMode

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