3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = Array( "uid" => "BOB", "attr" => "Value" ); $arr['something'] = 2; var_dump($arr); echo http_build_query($arr); echo count($arr); ?>
Output for 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, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 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
array(3) { ["uid"]=> string(3) "BOB" ["attr"]=> string(5) "Value" ["something"]=> int(2) } uid=BOB&attr=Value&something=23
Output for 4.4.5 - 4.4.9
array(3) { ["uid"]=> string(3) "BOB" ["attr"]=> string(5) "Value" ["something"]=> int(2) } Fatal error: Call to undefined function: http_build_query() in /in/jnPs6 on line 12
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
array(3) { ["uid"]=> string(3) "BOB" ["attr"]=> string(5) "Value" ["something"]=> int(2) } Fatal error: Call to undefined function: http_build_query() in /in/jnPs6 on line 12
Process exited with code 255.
Output for 4.3.0 - 4.3.1
array(3) { ["uid"]=> string(3) "BOB" ["attr"]=> string(5) "Value" ["something"]=> int(2) } Fatal error: Call to undefined function: http_build_query() in /in/jnPs6 on line 12

preferences:
184.24 ms | 401 KiB | 313 Q