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<?php $arr = array( 20 => array( 'width' => 20, 'height' => 20, ), 60 => array( 'width' => 60, 'height' => 40, ), 150 => array( 'width' => 150, 'height' => 300, ) ); $it = new RecursiveArrayIterator( $arr ); while( $it->valid() ) { echo $iterator -> key() . ' : ' . $iterator -> current() .PHP_EOL; }
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $iterator in /in/mGqXN on line 19 Fatal error: Uncaught Error: Call to a member function key() on null in /in/mGqXN:19 Stack trace: #0 {main} thrown in /in/mGqXN on line 19
Process exited with code 255.

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