3v4l.org

run code in 300+ PHP versions simultaneously
<?php function isCorrect(string) { $string{strlen($string)-1}; } assert(isCorrect('') === true); assert(isCorrect('()') === true); assert(isCorrect('{()}') === true); assert(isCorrect('{()}{}') === true); assert(isCorrect('(())') === true); assert(isCorrect('{({({({()})})})}') === true); assert(isCorrect('{(})') === false);

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)
5.4.340.0060.03712.02
5.4.320.0040.03912.51
5.4.310.0060.03912.52
5.4.300.0110.04812.52
5.4.290.0070.04612.51
5.4.280.0090.04012.40
5.4.270.0060.03712.41
5.4.260.0070.03812.40
5.4.250.0060.04812.41
5.4.240.0100.06812.40
5.4.230.0080.04412.39
5.4.220.0060.03512.39
5.4.210.0060.03512.39
5.4.200.0070.04012.40
5.4.190.0030.03912.39
5.4.180.0040.03812.39
5.4.170.0030.03812.40
5.4.160.0040.03712.40
5.4.150.0060.03512.39
5.4.140.0000.04312.09
5.4.130.0090.03212.06
5.4.120.0080.03312.03
5.4.110.0020.03912.03
5.4.100.0050.03612.02
5.4.90.0050.03712.03
5.4.80.0040.03812.02
5.4.70.0030.03712.02
5.4.60.0040.03512.02
5.4.50.0080.04612.03
5.4.40.0050.03812.01
5.4.30.0090.03312.01
5.4.20.0040.03812.00
5.4.10.0060.03512.01
5.4.00.0090.03411.50
5.3.290.0070.04012.80
5.3.280.0060.03712.71
5.3.270.0040.04312.72
5.3.260.0040.04112.72
5.3.250.0050.03712.72
5.3.240.0080.03512.72
5.3.230.0030.04112.71
5.3.220.0070.03612.68
5.3.210.0100.04712.68
5.3.200.0070.04312.68
5.3.190.0070.03512.68
5.3.180.0080.03412.67
5.3.170.0090.03612.67
5.3.160.0050.04212.68
5.3.150.0060.05212.68
5.3.140.0020.04112.66
5.3.130.0070.03712.66
5.3.120.0030.04212.66
5.3.110.0060.03912.66
5.3.100.0050.03712.13
5.3.90.0060.03512.11
5.3.80.0090.03212.09
5.3.70.0090.03812.09
5.3.60.0050.03912.08
5.3.50.0040.03712.02
5.3.40.0050.03812.02
5.3.30.0040.03611.98
5.3.20.0070.03511.77
5.3.10.0050.03511.73
5.3.00.0030.03811.71
5.2.170.0050.0309.23
5.2.160.0080.0259.21
5.2.150.0070.0289.21
5.2.140.0050.0299.21
5.2.130.0020.0319.17
5.2.120.0030.0309.18
5.2.110.0070.0269.18
5.2.100.0090.0249.18
5.2.90.0040.0289.18
5.2.80.0060.0299.18
5.2.70.0030.0319.17
5.2.60.0050.0299.13
5.2.50.0050.0299.09
5.2.40.0040.0319.06
5.2.30.0050.0299.04
5.2.20.0060.0279.04
5.2.10.0040.0378.95
5.2.00.0070.0548.81
5.1.60.0070.0218.09
5.1.50.0040.0258.09
5.1.40.0040.0248.06
5.1.30.0030.0278.42
5.1.20.0030.0308.44
5.1.10.0050.0258.16
5.1.00.0040.0268.16
5.0.50.0040.0216.64
5.0.40.0030.0196.50
5.0.30.0020.0326.31
5.0.20.0030.0206.29
5.0.10.0020.0216.25
5.0.00.0060.0276.25
4.4.90.0020.0164.78
4.4.80.0020.0154.76
4.4.70.0030.0154.75
4.4.60.0030.0154.75
4.4.50.0050.0134.77
4.4.40.0030.0254.70
4.4.30.0040.0144.76
4.4.20.0020.0164.84
4.4.10.0040.0144.85
4.4.00.0060.0274.76
4.3.110.0030.0154.67
4.3.100.0020.0234.67
4.3.90.0040.0204.63
4.3.80.0060.0264.59
4.3.70.0040.0214.63
4.3.60.0010.0214.63
4.3.50.0050.0214.63
4.3.40.0030.0264.54
4.3.30.0010.0193.30
4.3.20.0020.0193.28
4.3.10.0020.0223.24
4.3.00.0230.0236.63

preferences:
146.76 ms | 1398 KiB | 7 Q