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<?php function bcfact($n){ $factorial=$n; while (--$n>1) $factorial=bcmul($factorial,$n); return $factorial; } print bcfact(50.5);
based on NZUHT
Output for 5.3.18 - 5.5.28, 5.5.31 - 5.5.33, 5.5.35 - 5.6.12, 5.6.16 - 5.6.19, 5.6.21 - 7.0.4, 7.0.6 - 7.2.0
244409700321954187048361720421396208206170524588939098392728742005
Output for 7.0.5
Fatal error: Uncaught Error: Call to undefined function bcmul() in /in/map4i:5 Stack trace: #0 /in/map4i(9): bcfact(49.5) #1 {main} thrown in /in/map4i on line 5
Process exited with code 255.
Output for 5.5.29 - 5.5.30, 5.5.34, 5.6.13 - 5.6.15, 5.6.20
Fatal error: Call to undefined function bcmul() in /in/map4i on line 5
Process exited with code 255.