@ 2013-10-14T14:04:44Z <?php
$a = base_convert(0xFF,16,2);
$b = base_convert(~0xFF,16,2);
var_dump($a, $b);
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Output for 7.4.0 - 7.4.25 , 7.4.27 - 7.4.33 , 8.0.0 - 8.0.30 , 8.1.0 - 8.1.28 , 8.2.0 - 8.2.18 , 8.3.0 - 8.3.6 Deprecated: Invalid characters passed for attempted conversion, these have been ignored in /in/8tvcj on line 6
string(10) "1001010101"
string(10) "1001010110"
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 - 5.6.30 , 7.0.0 - 7.0.20 , 7.1.0 - 7.1.20 , 7.2.0 - 7.2.33 , 7.3.12 - 7.3.33 , 7.4.26 string(10) "1001010101"
string(10) "1001010110"
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291.22 ms | 404 KiB | 371 Q