3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo serialize(array('docs' => array(array('property_imgurl' => 'http://www.example.com/image1.jpg'), array('property_imgurl' => 'http://www.example.com/image2.jpg'), array('property_imgurl' => 'http://www.example.com/image3.jpg'), array('property_imgurl' => 'http://www.example.com/image4.jpg'))));
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
a:1:{s:4:"docs";a:4:{i:0;a:1:{s:15:"property_imgurl";s:33:"http://www.example.com/image1.jpg";}i:1;a:1:{s:15:"property_imgurl";s:33:"http://www.example.com/image2.jpg";}i:2;a:1:{s:15:"property_imgurl";s:33:"http://www.example.com/image3.jpg";}i:3;a:1:{s:15:"property_imgurl";s:33:"http://www.example.com/image4.jpg";}}}

preferences:
306.95 ms | 406 KiB | 459 Q