3v4l.org

run code in 300+ PHP versions simultaneously
<?php $c[0]=1/3; $c[1]="abc"; $c[2] = array("abc","def"); $c[1/3] = "ddd"; echo serialize($c); ?>
Output for 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Deprecated: Implicit conversion from float 0.3333333333333333 to int loses precision in /in/XcD5q on line 5 a:3:{i:0;s:3:"ddd";i:1;s:3:"abc";i:2;a:2:{i:0;s:3:"abc";i:1;s:3:"def";}}
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 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, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
a:3:{i:0;s:3:"ddd";i:1;s:3:"abc";i:2;a:2:{i:0;s:3:"abc";i:1;s:3:"def";}}

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265.96 ms | 404 KiB | 419 Q