3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $lines = array('link1', 'link2', 'link3'); $imgSrc = $lines[array_rand($lines)]; $lineNumber = array_search($imgSrc, $lines); echo json_encode(array($lineNumber => $imgSrc));
Output for 5.2.2, 5.2.5, 5.2.8, 5.2.13, 5.2.17, 5.3.1, 5.3.4, 5.3.6, 5.3.13 - 5.3.15, 5.3.17 - 5.3.19, 5.3.23 - 5.3.24, 5.3.26, 5.3.29, 5.4.3, 5.4.15 - 5.4.16, 5.4.20, 5.4.23, 5.4.29 - 5.4.30, 5.4.36, 5.4.42, 5.4.44, 5.5.2, 5.5.4 - 5.5.6, 5.5.8, 5.5.12 - 5.5.13, 5.5.19, 5.5.24 - 5.5.25, 5.5.31, 5.5.34, 5.6.3, 5.6.7, 5.6.15, 5.6.20, 5.6.22, 5.6.24 - 5.6.28, 7.0.2, 7.0.6 - 7.0.7, 7.0.14 - 7.1.0
{"1":"link2"}
Output for 5.2.0, 5.2.3, 5.2.11, 5.2.15 - 5.2.16, 5.3.7, 5.3.9, 5.3.12, 5.3.16, 5.3.21, 5.3.28, 5.4.1, 5.4.4 - 5.4.5, 5.4.8 - 5.4.9, 5.4.11, 5.4.13 - 5.4.14, 5.4.18 - 5.4.19, 5.4.24, 5.4.27 - 5.4.28, 5.4.37, 5.4.40 - 5.4.41, 5.4.43, 5.4.45 - 5.5.0, 5.5.7, 5.5.10, 5.5.16 - 5.5.18, 5.5.21 - 5.5.23, 5.5.26 - 5.5.27, 5.5.29, 5.5.32 - 5.5.33, 5.5.35 - 5.5.36, 5.6.1 - 5.6.2, 5.6.4 - 5.6.6, 5.6.8, 5.6.11, 5.6.14, 5.6.17, 5.6.19, 5.6.21, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.0.1, 7.0.3 - 7.0.5, 7.0.8 - 7.0.9
{"2":"link3"}
Output for 5.2.1, 5.2.4, 5.2.6 - 5.2.7, 5.2.9 - 5.2.10, 5.2.12, 5.2.14, 5.3.0, 5.3.2 - 5.3.3, 5.3.5, 5.3.8, 5.3.10 - 5.3.11, 5.3.20, 5.3.22, 5.3.25, 5.3.27, 5.4.0, 5.4.2, 5.4.6 - 5.4.7, 5.4.10, 5.4.12, 5.4.17, 5.4.21 - 5.4.22, 5.4.25 - 5.4.26, 5.4.31 - 5.4.35, 5.4.38 - 5.4.39, 5.5.1, 5.5.3, 5.5.9, 5.5.11, 5.5.14 - 5.5.15, 5.5.20, 5.5.28, 5.5.30, 5.5.37 - 5.6.0, 5.6.9 - 5.6.10, 5.6.12 - 5.6.13, 5.6.16, 5.6.18, 5.6.23
["link1"]
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/BiscZ on line 6
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_encode() in /in/BiscZ on line 6
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: json_encode() in /in/BiscZ on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_encode() in /in/BiscZ on line 6