3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php //Source: https://bugs.php.net/bug.php?id=63898 $key = utf8_encode("Foo " . chr(163)); $array = array($key => ""); var_dump($array); $json = json_encode($array); var_dump($json); $array2 = array($key); var_dump($array2, json_encode($array2)); var_dump(json_encode(utf8_encode('hey now ' . chr(180) . ' you’re dumb'))); var_dump(json_encode('hey now ' . chr(180) . ' you’re dumb')); /* $x = 'Audio Pass: Get live NFL game audio while you’re on the road with Audio Pass.'; var_dump(htmlentities($x)); var_dump(htmlentities($x, ENT_COMPAT | ENT_SUBSTITUTE, 'ISO-8859-1')); var_dump(htmlentities($x, ENT_COMPAT | ENT_SUBSTITUTE, 'UTF-8')); */
based on X7kUZ
Output for 5.5.0 - 7.1.0
array(1) { ["Foo £"]=> string(0) "" } string(17) "{"Foo \u00a3":""}" array(1) { [0]=> string(6) "Foo £" } string(14) "["Foo \u00a3"]" string(45) ""hey now \u00b4 you\u00e2\u0080\u0099re dumb"" bool(false)
Output for 5.2.7 - 5.3.13, 5.3.15 - 5.4.45
array(1) { ["Foo £"]=> string(0) "" } string(17) "{"Foo \u00a3":""}" array(1) { [0]=> string(6) "Foo £" } string(14) "["Foo \u00a3"]" string(45) ""hey now \u00b4 you\u00e2\u0080\u0099re dumb"" string(4) "null"
Output for 5.3.14
array(1) { ["Foo £"]=> string(0) "" } string(17) "{"Foo \u00a3":""}" array(1) { [0]=> string(6) "Foo £" } string(14) "["Foo \u00a3"]" string(45) ""hey now \u00b4 you\u00e2\u0080\u0099re dumb"" Warning: json_encode(): Invalid UTF-8 sequence in argument in /in/qfZd1 on line 20 bool(false)
Output for 5.2.0 - 5.2.6
array(1) { ["Foo £"]=> string(0) "" } string(17) "{"Foo \u00a3":""}" array(1) { [0]=> string(6) "Foo £" } string(14) "["Foo \u00a3"]" string(45) ""hey now \u00b4 you\u00e2\u0080\u0099re dumb"" string(10) ""hey now ""
Output for 5.0.0 - 5.1.6
array(1) { ["Foo £"]=> string(0) "" } Fatal error: Call to undefined function json_encode() in /in/qfZd1 on line 8
Process exited with code 255.
Output for 4.4.5 - 4.4.9
array(1) { ["Foo £"]=> string(0) "" } Fatal error: Call to undefined function: json_encode() in /in/qfZd1 on line 8
Process exited with code 255.
Output for 4.3.2 - 4.4.4
array(1) { ["Foo £"]=> string(0) "" } Fatal error: Call to undefined function: json_encode() in /in/qfZd1 on line 8
Process exited with code 255.
Output for 4.3.0 - 4.3.1
array(1) { ["Foo £"]=> string(0) "" } Fatal error: Call to undefined function: json_encode() in /in/qfZd1 on line 8