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run code in 300+ PHP versions simultaneously
<?php $s = 'a:3:{i:0;O:13:"SplFixedArray":2:{i:0;a:1:{i:17;i:1711;}i:1;i:1337;}i:1;R:3;i:0;i:0;}'; $x=unserialize($s); $z=[1]; $y=[3]; var_dump($x);
Output for 5.6.0 - 5.6.40, 7.0.15 - 7.0.33, 7.1.1 - 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 - 8.3.4, 8.3.6
array(2) { [0]=> int(0) [1]=> array(1) { [17]=> int(1711) } }
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 array(2) { [0]=> int(0) [1]=> array(1) { [17]=> int(1711) } }
Output for 7.1.0
array(2) { [0]=> int(0) [1]=> &array(1) { [17]=> int(1711) } }
Output for 7.0.0 - 7.0.14
array(2) { [0]=> int(0) [1]=> &array(1) { [0]=> int(3) } }

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224.19 ms | 401 KiB | 291 Q