3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = new SimpleXMLElement("<foo>123</foo>"); var_dump(bin2hex(chr($a)));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught TypeError: chr(): Argument #1 ($codepoint) must be of type int, SimpleXMLElement given in /in/nqbf4:3 Stack trace: #0 /in/nqbf4(3): chr(Object(SimpleXMLElement)) #1 {main} thrown in /in/nqbf4 on line 3
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Warning: chr() expects parameter 1 to be int, object given in /in/nqbf4 on line 3 string(2) "00"
Output for 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
string(2) "00"
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
string(2) "7b"
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Fatal error: Cannot instantiate non-existent class: simplexmlelement in /in/nqbf4 on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: simplexmlelement in /in/nqbf4 on line 2

preferences:
328.11 ms | 401 KiB | 451 Q