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run code in 300+ PHP versions simultaneously
<?php $a = array(0.001 => 'b', .1 => 'c', .99999 => 'k'); print_r($a);
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 0.001 to int loses precision in /in/TrcSP on line 2 Deprecated: Implicit conversion from float 0.1 to int loses precision in /in/TrcSP on line 2 Deprecated: Implicit conversion from float 0.99999 to int loses precision in /in/TrcSP on line 2 Array ( [0] => k )
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, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
Array ( [0] => k )

preferences:
222.9 ms | 404 KiB | 308 Q