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run code in 300+ PHP versions simultaneously
<?php $x=500; $xx=$x; $a=60; $q=10; $qq=0.02; $s=0; for ($i=$qq;; $i=$i+$i*$a*0.01) { $x-=$i; echo ($s+1).">>>". ($xx-$x)."\n##>>>(". $i.")\n"; if ($x <0) break; $y=$x; $s++; $c=$i; } echo "\n#######\n"; echo ($c)."///".$s."\\\\\\ \n".($xx-$x).">>>n>>".(-$x)."\nend>>>". ($y); ?>
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
1>>>0.019999999999982 ##>>>(0.02) 2>>>0.051999999999964 ##>>>(0.032) 3>>>0.10319999999996 ##>>>(0.0512) 4>>>0.18511999999998 ##>>>(0.08192) 5>>>0.316192 ##>>>(0.131072) 6>>>0.52590720000001 ##>>>(0.2097152) 7>>>0.86145152 ##>>>(0.33554432) 8>>>1.398322432 ##>>>(0.536870912) 9>>>2.2573158912 ##>>>(0.8589934592) 10>>>3.63170542592 ##>>>(1.37438953472) 11>>>5.830728681472 ##>>>(2.199023255552) 12>>>9.3491658903552 ##>>>(3.5184372088832) 13>>>14.978665424568 ##>>>(5.6294995342131) 14>>>23.985864679309 ##>>>(9.007199254741) 15>>>38.397383486895 ##>>>(14.411518807586) 16>>>61.455813579032 ##>>>(23.058430092137) 17>>>98.349301726451 ##>>>(36.893488147419) 18>>>157.37888276232 ##>>>(59.029581035871) 19>>>251.82621241971 ##>>>(94.447329657393) 20>>>402.94193987154 ##>>>(151.11572745183) 21>>>644.72710379447 ##>>>(241.78516392293) ####### 151.11572745183///20\\\ 644.72710379447>>>n>>144.72710379447 end>>>97.058060128457
preferences:
141.32 ms | 405 KiB | 173 Q