3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo(str_trim("'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)
5.4.320.0070.03912.55
5.4.310.0070.03712.54
5.4.300.0080.03712.54
5.4.290.0060.03912.54
5.4.280.0070.04212.43
5.4.270.0070.03512.43
5.4.260.0080.04212.44
5.4.250.0050.04112.44
5.4.240.0060.03512.43
5.4.230.0050.04912.43
5.4.220.0070.04012.43
5.4.210.0100.03612.43
5.4.200.0040.04312.43
5.4.190.0070.03612.43
5.4.180.0060.04012.43
5.4.170.0060.03512.43
5.4.160.0100.03612.43
5.4.150.0090.03812.42
5.4.140.0060.04112.11
5.4.130.0070.03412.10
5.4.120.0050.04012.06
5.4.110.0050.03612.05
5.4.100.0060.04212.06
5.4.90.0050.04312.06
5.4.80.0050.04012.06
5.4.70.0100.03112.05
5.4.60.0120.03412.05
5.4.50.0110.04312.06
5.4.40.0060.03512.04
5.4.30.0070.03912.04
5.4.20.0040.03712.03
5.4.10.0050.03812.04
5.4.00.0030.04211.54
5.3.290.0090.03612.80
5.3.280.0060.03912.71
5.3.270.0050.04212.72
5.3.260.0100.03412.71
5.3.250.0050.04112.72
5.3.240.0080.03612.72
5.3.230.0090.03612.71
5.3.220.0060.04012.68
5.3.210.0080.05412.68
5.3.200.0120.04712.68
5.3.190.0080.03812.67
5.3.180.0050.03812.67
5.3.170.0050.03912.67
5.3.160.0090.03612.67
5.3.150.0040.04212.68
5.3.140.0040.03812.66
5.3.130.0060.04812.66
5.3.120.0050.03912.66
5.3.110.0080.04212.66
5.3.100.0080.03312.12
5.3.90.0100.03912.08
5.3.80.0060.03512.07
5.3.70.0060.04012.08
5.3.60.0080.03312.06
5.3.50.0070.03512.00
5.3.40.0090.03212.00
5.3.30.0080.03911.96
5.3.20.0070.03311.74
5.3.10.0060.03511.71
5.3.00.0050.03611.70
5.2.170.0060.0359.21
5.2.160.0080.0279.21
5.2.150.0040.0369.21
5.2.140.0070.0369.21
5.2.130.0020.0319.17
5.2.120.0060.0279.17
5.2.110.0010.0329.18
5.2.100.0060.0299.18
5.2.90.0030.0309.18
5.2.80.0050.0299.17
5.2.70.0050.0399.17
5.2.60.0030.0319.13
5.2.50.0020.0319.09
5.2.40.0050.0279.07
5.2.30.0040.0329.04
5.2.20.0050.0319.03
5.2.10.0060.0318.95
5.2.00.0040.0398.81
5.1.60.0040.0258.11
5.1.50.0040.0258.11
5.1.40.0030.0258.09
5.1.30.0050.0258.44
5.1.20.0050.0258.46
5.1.10.0020.0278.18
5.1.00.0050.0248.19
5.0.50.0050.0186.66
5.0.40.0030.0206.53
5.0.30.0030.0326.33
5.0.20.0040.0196.30
5.0.10.0030.0206.29
5.0.00.0050.0296.28
4.4.90.0030.0154.78
4.4.80.0020.0164.76
4.4.70.0030.0154.76
4.4.60.0020.0164.76
4.4.50.0030.0154.77
4.4.40.0030.0254.71
4.4.30.0020.0174.76
4.4.20.0020.0184.85
4.4.10.0030.0174.84
4.4.00.0020.0264.76
4.3.110.0010.0184.67
4.3.100.0020.0164.67
4.3.90.0020.0154.63
4.3.80.0030.0244.59
4.3.70.0030.0204.63
4.3.60.0040.0134.63
4.3.50.0030.0164.63
4.3.40.0030.0234.54
4.3.30.0030.0203.33
4.3.20.0010.0183.30
4.3.10.0020.0203.27
4.3.00.0100.00715.97
preferences:
141.91 ms | 1394 KiB | 7 Q