3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo(str_replace(" ", "","'a'=['a'=['r'=['d'=['v'=['a'=['r'=['k/']]],'w'=['o'=['l'=['f/']]]]'o'=['n/']]],'b'=['a'=['c'=['k/','u' = [ 's/' ] ], 'f' = [ 't/' ], 'l' = [ 'o' = [ 'n' = [ 'e/' ] ] ], 'n' = [ 'd' = [ 'o' = [ 'n\' = [ 'e' = [ 'd/' ], 'm' = [ 'e' = [ 'n' = [ 't/' ] ] ], 's/' ] ] ] ], 's' = [ 'e/' = [ 'd/', 'm' = [ 'e' = [ 'n' = [ 't/' ] ] ] ], 'h/' = [ 'e' = [ 'd/' ] ] ] 't' = [ 'e/' = [ 'd/', 'm' = [ 'e' = [ 'n' = [ 't/' ] ] ], 's/', ], 't' = [ 'o' = [ 'i' = [ 'r/' = [ 's/' ] ] ] ] ] ], 'b' = [ 'e/' = [ 's' = [ 's/' ], 'y/' = [ 's/' ] ], 'o' = [ 't/' = [ 's/' ] ], 'r' = [ 'e' = [ 'v' = [ 'i' = [ 'a' = [ 't' = [ 'e/' = [ 'd/', 's/' ], 'i' = [ 'n' = [ 'g/' ], 'o' = [ 'n/' = [ 's/' ] ] ] ] ] ] ] ] ] ], 'd' = [ 'i' = [ 'c' = [ 'a'= [ 't' = [ 'e/' = [ 'd/', 's/' ], 'i' = [ 'n' = [ 'g/' ], 'o' = [ 'n/' ] ] ] ] ] ], 'o' = [ 'm' = [ 'e' = [ 'n/' = [ 's/' ] ] 'i' = [ 'n' = [ 'a' = [ 'l/' ] ] ] ] ], 'u' = [ 'c' = [ 't/' = [ 'e' = [ 'd/' ], 'i' = [ 'n' = [ 'g/' ], 'o' = [ 'n/' = [ 's/' ] ] ], 'o' = [ 'r/' = [ 's/' ] ], 's/' ] ] ] ] 'e/' = [ 'a' = [ 'm/' ], 'l/' = [ 'e/' ], 'r' = [ 'd' = [ 'e' = [ 'e' = [ 'n/' ] ] ], 'r'= [ 'a' = [ 'n' = [ 't/' ], 't' = [ 'i' = [ 'o' = [ 'n/' = [ 's/' ] ] ] ] ] ] ], 't/' = [ 's/', 't' = [ 'e' = [ 'd/' ], 'i' = [ 'n' = [ 'g/' ] ] ] ], 'y' = [ 'a' = [ 'n' = [ 'c' = [ 'e/' ] ] ] ] ], 'h' = [ 'o' = [ 'r/' = [ 'r' = [ 'e' = [ 'd/', 'n' = [ 'c' = [ 'e/' ], 't/' ] ] ], 's/' ] ] ], 'i' = [ 'd' = [ 'e/' = [ 'd/', 's/' ], 'i' = [ 'n' = [ 'g/' ] ], 'j' = [ 'a' = [ 'n/' ] ] ], 'e' = [ 's/' ], 'l' = [ 'i' = [ 't' = [ 'i' = [ 'e' = [ 's/' ] ], 'y/' ] ] ] ], 'j' = [ 'e' = [ 'c' = [ 't/' = [ 'l' = [ 'y/' ] ] ] ], 'u' = [ 'r' = [ 'e/' = [ 'd/' ] ] ] ], 'l' = [ 'a' = [ 't' = [ 'e/' = [ 's/' ], 'i' = [ 'n' = [ 'g/' ], 'o' = [ 'n/' ], 'v' = [ 'e/' ] ] ] 'z' = [ 'e/' ] ], 'e/' = [ 'b' = [ 'o' = [ 'd' = [ 'i' = [ 'e' = [ 'd/' ] ] ] ] ], 'r/', 's' = [ 't/' ] ], 'o' = [ 'o' = [ 'm/' ] ], 'u' = [ 't' = [ 'i' = [ 'o' = [ 'n/' = [ 's/' ] ] ] ] ], 'y/' ], 'n' = [ 'e' = [ 'g' = [ 'a' = [ 't' = [ 'i' = [ 'o' = [ 'n/' ] ] ] ] ] ], 'o' = [ 'r' = [ 'm' = [ 'a' = [ 'l/ = [ 'i' = [ 't' = [ 'i' = [ 'e' = [ 's/' ] ], 'y/' ] ], 'l' = [ 'y/' ] ] ] ] ] ] ], 'o' = [ 'a' = [ 'r' = [ 'd/' ] ], 'd'= [ 'e/' = [ 's/' ] ], 'l' = [ 'i' = [ 's' = [ 'h/' = [ 'e' = [ 'd/', 's/' ], 'i' = [ 'n' = [ 'g/' ] ] ] ], 't' = [ 'i' = [ 'o' = [ 'n/' = [ 'i' = [ 's' = [ 't/' = [ 's/' ] ] ] ] ] ] ] ] ], 'm' = [ 'b/', 'i' = [ 'n' = [ 'a' = [ 'b' = [ 'l' = [ 'e/', 'y/' ] ], 't' = [ 'e/' = [ 'd/' ] 'i' = [ 'o' = [ 'n/' = [ 's/' ] ] ] ] ] ] ] ], 'r' = [ 'i' = [ 'g' = [ 'i' = [ 'n' = [ 'a' = [ 'l/' ], 'e' = [ 's/' ] ] ] ] ], 't/' = [ 'e' = [ 'd/' ], 'i' = [ 'n' = [ 'g/' ], 'o' = [ 'n/' = [ 'i' = [ 's' = [ 't/' = [ 's/' ] ] ], 's/' ] ], 'v' = [ 'e/' ] ], 's/' ] ], 'u' = [ 'n' = [ 'd/' = [ 'e' = [ 'd/' ], 'i' = [ 'n' = [ 'g/' ] ], 's/' ] ], 't/' ], 'v' = [ 'e'/ ] ], 'r' = [ 'a' = [ 'd'= [ 'e' = [ 'd/' ] ], 'h' = [ 'a' = [ 'm/' ] ], 's' = [ 'i' = [ 'o' = [ 'n/' = [ 's/' ] ], 'v' = [ 'e/' = [ 'l' = [ 'y/' ] 'n' = [ 'e' = [ 's' = [ 's/' ] ] ], 's/' ] ] ] ] ], 'e' = [ 'a' = [ 's' = [ 't/' ] ] ] 'i' = [ 'd' = [ 'g' = [ 'e/' = [ 'd/', 'm' = [ 'e' = [ 'n' = [ 't/' ] ] ] ], 'i' = [ 'n' = [ 'g/' ] ] ] ] ], 'o' = [ 'a' = [ 'd/' ], 'g' = [ 'a' = [ 't' = [ 'e/' = [ 'd/' ], 'i' = [ 'n' = [ 'g/' ], 'o' = [ 'n/' = [ 's/' ] ] ] ] ] ] ], 'u' = [ 'p' = [ 't/' = [ 'l' = [ 'y/' ], 'n' = [ 'e' = [ 's' = [ 's/' ] ] ] ] ] ] ],");

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
5.4.320.0060.03612.55
5.4.310.0070.03712.54
5.4.300.0090.03712.54
5.4.290.0070.04612.54
5.4.280.0040.03712.44
5.4.270.0020.04012.44
5.4.260.0050.03812.43
5.4.250.0070.04712.43
5.4.240.0070.03412.43
5.4.230.0060.03712.43
5.4.220.0080.03812.43
5.4.210.0050.03512.43
5.4.200.0030.03912.43
5.4.190.0060.03512.42
5.4.180.0090.03412.42
5.4.170.0060.03712.43
5.4.160.0090.03612.43
5.4.150.0050.04212.42
5.4.140.0080.03912.12
5.4.130.0050.03612.10
5.4.120.0050.03512.06
5.4.110.0040.03712.06
5.4.100.0050.03512.05
5.4.90.0050.03712.06
5.4.80.0080.03512.06
5.4.70.0090.03812.05
5.4.60.0060.03612.05
5.4.50.0080.03312.05
5.4.40.0070.03412.04
5.4.30.0080.03412.04
5.4.20.0060.04012.04
5.4.10.0050.03412.04
5.4.00.0060.05111.54
5.3.290.0040.04212.80
5.3.280.0050.04212.71
5.3.270.0070.03812.72
5.3.260.0070.04112.72
5.3.250.0090.03412.72
5.3.240.0050.03812.72
5.3.230.0070.03712.71
5.3.220.0060.03712.68
5.3.210.0060.03912.68
5.3.200.0070.03612.68
5.3.190.0050.03812.68
5.3.180.0090.03312.68
5.3.170.0110.03612.67
5.3.160.0040.03812.68
5.3.150.0090.03512.67
5.3.140.0090.03612.66
5.3.130.0110.03412.66
5.3.120.0070.04112.66
5.3.110.0020.04112.66
5.3.100.0080.03712.12
5.3.90.0070.03812.09
5.3.80.0060.03612.07
5.3.70.0070.03412.07
5.3.60.0070.03612.06
5.3.50.0040.03812.00
5.3.40.0070.03812.01
5.3.30.0050.03511.96
5.3.20.0080.03411.74
5.3.10.0060.03511.71
5.3.00.0070.03411.70
5.2.170.0040.0319.21
5.2.160.0030.0309.21
5.2.150.0070.0289.21
5.2.140.0060.0299.21
5.2.130.0050.0309.17
5.2.120.0080.0319.17
5.2.110.0070.0299.18
5.2.100.0060.0339.18
5.2.90.0090.0269.17
5.2.80.0040.0389.17
5.2.70.0050.0309.17
5.2.60.0030.0339.13
5.2.50.0060.0329.09
5.2.40.0030.0339.07
5.2.30.0030.0319.04
5.2.20.0070.0329.03
5.2.10.0060.0278.95
5.2.00.0020.0308.82
5.1.60.0040.0248.11
5.1.50.0050.0248.11
5.1.40.0020.0268.09
5.1.30.0050.0258.45
5.1.20.0050.0258.46
5.1.10.0050.0258.18
5.1.00.0070.0228.18
5.0.50.0030.0216.66
5.0.40.0050.0186.53
5.0.30.0020.0326.34
5.0.20.0020.0216.31
5.0.10.0060.0236.29
5.0.00.0040.0336.29
4.4.90.0020.0174.77
4.4.80.0020.0164.75
4.4.70.0050.0134.75
4.4.60.0020.0164.76
4.4.50.0030.0154.77
4.4.40.0020.0254.71
4.4.30.0050.0134.76
4.4.20.0040.0144.85
4.4.10.0050.0154.85
4.4.00.0010.0294.76
4.3.110.0040.0174.67
4.3.100.0030.0184.67
4.3.90.0040.0164.64
4.3.80.0040.0334.58
4.3.70.0000.0174.63
4.3.60.0050.0224.63
4.3.50.0010.0244.63
4.3.40.0020.0244.54
4.3.30.0000.0193.32
4.3.20.0030.0183.30
4.3.10.0030.0183.27
4.3.00.0030.01715.97
preferences:
146.85 ms | 1394 KiB | 7 Q