3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = strrev('pɹoʍssɐd'); for ($i = 0; $i < strlen($str); $i++) echo chr($str[$i]); ?>

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)
8.3.40.0070.00718.77
8.3.30.0100.00318.71
8.3.20.0080.00018.65
8.3.10.0050.00319.09
8.3.00.0040.00421.86
8.2.170.0040.01122.96
8.2.160.0070.00720.53
8.2.150.0030.00524.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00421.10
8.2.110.0150.00421.18
8.2.100.0040.00817.91
8.2.90.0000.00918.22
8.2.80.0050.00317.97
8.2.70.0100.00017.50
8.2.60.0040.00417.93
8.2.50.0040.00718.07
8.2.40.0000.00918.05
8.2.30.0040.00421.13
8.2.20.0070.00017.77
8.2.10.0030.00617.67
8.2.00.0070.00017.69
8.1.270.0070.00023.99
8.1.260.0070.00026.35
8.1.250.0080.00028.09
8.1.240.0100.00019.66
8.1.230.0040.00821.04
8.1.220.0040.00417.75
8.1.210.0060.00318.82
8.1.200.0060.00317.23
8.1.190.0040.00417.51
8.1.180.0000.00818.10
8.1.170.0030.00518.58
8.1.160.0050.00218.85
8.1.150.0040.00418.52
8.1.140.0040.00417.25
8.1.130.0000.00617.78
8.1.120.0060.00317.47
8.1.110.0060.00317.36
8.1.100.0070.00017.34
8.1.90.0070.00017.25
8.1.80.0000.00717.31
8.1.70.0030.00317.28
8.1.60.0060.00317.38
8.1.50.0040.00417.46
8.1.40.0020.00517.40
8.1.30.0000.00817.47
8.1.20.0040.00417.57
8.1.10.0020.00517.47
8.1.00.0040.00417.53
8.0.300.0070.00020.21
8.0.290.0040.00417.18
8.0.280.0070.00018.39
8.0.270.0070.00017.22
8.0.260.0030.00316.77
8.0.250.0040.00416.98
8.0.240.0060.00316.95
8.0.230.0000.00716.93
8.0.220.0000.00716.87
8.0.210.0070.00016.87
8.0.200.0030.00316.85
8.0.190.0000.00716.99
8.0.180.0040.00416.89
8.0.170.0000.00716.94
8.0.160.0030.00316.89
8.0.150.0040.00416.80
8.0.140.0000.00816.82
8.0.130.0030.00313.28
8.0.120.0020.00516.85
8.0.110.0040.00416.95
8.0.100.0000.00716.77
8.0.90.0020.00516.86
8.0.80.0090.00616.85
8.0.70.0040.00316.71
8.0.60.0050.00216.78
8.0.50.0070.00016.75
8.0.30.0080.01216.98
8.0.20.0060.01317.40
8.0.10.0070.00017.07
8.0.00.0100.00816.77
7.4.330.0050.00016.79
7.4.320.0000.00616.48
7.4.300.0000.00616.43
7.4.290.0030.00316.50
7.4.280.0070.00016.34
7.4.270.0030.00316.48
7.4.260.0050.00013.15
7.4.250.0060.00316.48
7.4.240.0030.00316.52
7.4.230.0030.00316.36
7.4.220.0210.00316.41
7.4.210.0060.01116.55
7.4.200.0030.00316.55
7.4.190.0070.00016.60
7.4.160.0090.00716.41
7.4.150.0120.00617.40
7.4.140.0070.01017.86
7.4.130.0160.00716.51
7.4.120.0080.01316.47
7.4.110.0040.01616.59
7.4.100.0180.00016.65
7.4.90.0110.00716.55
7.4.80.0110.01119.39
7.4.70.0110.00716.73
7.4.60.0030.01316.33
7.4.50.0060.00316.43
7.4.40.0030.01322.77
7.4.30.0120.00416.58
7.4.00.0040.01114.87
7.3.330.0000.00513.16
7.3.320.0050.00013.23
7.3.310.0000.00716.25
7.3.300.0000.00716.35
7.3.290.0040.01116.35
7.3.280.0110.00816.29
7.3.270.0030.01417.40
7.3.260.0130.00818.24
7.3.250.0100.00716.50
7.3.240.0070.01016.47
7.3.230.0150.00816.39
7.3.210.0090.00616.43
7.3.200.0180.00419.39
7.3.190.0110.00716.64
7.3.180.0050.01116.49
7.3.170.0130.00816.51
7.3.160.0030.01516.36
7.3.120.0170.00014.90
7.2.330.0120.01416.68
7.2.320.0030.01416.62
7.2.310.0150.00916.43
7.2.300.0170.00616.38
7.2.290.0110.00616.43
7.2.00.0030.01019.36
7.1.100.0080.00817.99
7.1.70.0030.00517.11
7.1.60.0130.01019.40
7.1.50.0100.01317.13
7.1.00.0070.06022.25
7.0.200.0030.00916.64
7.0.140.0070.07022.01
7.0.100.0100.04319.83
7.0.90.0230.03720.08
7.0.80.0130.06019.90
7.0.70.0030.09019.88
7.0.60.0030.05019.85
7.0.50.0100.04320.20
7.0.40.0130.08020.12
7.0.30.0100.04320.04
7.0.20.0130.07020.05
7.0.10.0030.04720.09
7.0.00.0130.04719.97
5.6.280.0070.07020.90
5.6.250.0070.06020.61
5.6.240.0100.07320.63
5.6.230.0100.07720.51
5.6.220.0000.06720.56
5.6.210.0030.07720.38
5.6.200.0000.09021.11
5.6.190.0100.04020.99
5.6.180.0070.08320.97
5.6.170.0070.04721.08
5.6.160.0100.04320.90
5.6.150.0200.06320.93
5.6.140.0100.04320.88
5.6.130.0100.04720.98
5.6.120.0030.09021.06
5.6.110.0230.06320.93
5.6.100.0030.05320.94
5.6.90.0070.08721.05
5.6.80.0130.07020.29
5.6.70.0000.05020.35
5.6.60.0130.04320.32
5.6.50.0030.06720.24
5.6.40.0030.06720.32
5.6.30.0070.06020.32
5.6.20.0130.06320.30
5.6.10.0070.07320.38
5.6.00.0070.03720.22
5.5.380.0130.07020.38
5.5.370.0070.06720.34
5.5.360.0030.09020.28
5.5.350.0170.06720.39
5.5.340.0030.07320.65
5.5.330.0100.04320.63
5.5.320.0030.08020.83
5.5.310.0070.07020.74
5.5.300.0030.08020.86
5.5.290.0130.06020.57
5.5.280.0170.07320.81
5.5.270.0070.08720.72
5.5.260.0100.08320.69
5.5.250.0130.07320.39
5.5.240.0070.07720.21
5.5.230.0030.07320.08
5.5.220.0100.07720.14
5.5.210.0030.08020.18
5.5.200.0100.06720.15
5.5.190.0000.07320.02
5.5.180.0070.07720.13
5.5.160.0070.08020.16
5.5.150.0170.07020.09
5.5.140.0030.05320.18
5.5.130.0100.04320.08
5.5.120.0000.08320.16
5.5.110.0130.04020.18
5.5.100.0130.06720.01
5.5.90.0130.07020.01
5.5.80.0070.07720.02
5.5.70.0030.04719.97
5.5.60.0100.07720.00
5.5.50.0100.04020.05
5.5.40.0130.07320.02
5.5.30.0030.04020.03
5.5.20.0130.06720.00
5.5.10.0170.07019.97
5.5.00.0070.06719.98
5.4.450.0070.05019.45
5.4.440.0000.07719.44
5.4.430.0130.07319.27
5.4.420.0100.07719.46
5.4.410.0070.07719.24
5.4.400.0070.06319.12
5.4.390.0000.05019.10
5.4.380.0170.06319.24
5.4.370.0170.06318.95
5.4.360.0130.06319.05
5.4.350.0070.07019.00
5.4.340.0100.04318.95
5.4.320.0000.05019.23
5.4.310.0030.04318.83
5.4.300.0130.07018.81
5.4.290.0100.07318.98
5.4.280.0030.04319.22
5.4.270.0100.04019.04
5.4.260.0100.06019.11
5.4.250.0030.05718.97
5.4.240.0070.06719.05
5.4.230.0030.07718.77
5.4.220.0030.08019.11
5.4.210.0070.04019.06
5.4.200.0030.06018.80
5.4.190.0030.06719.18
5.4.180.0000.04319.10
5.4.170.0070.04019.03
5.4.160.0070.06019.05
5.4.150.0100.06719.21
5.4.140.0130.06716.22
5.4.130.0100.06316.32
5.4.120.0100.07016.19
5.4.110.0030.08716.30
5.4.100.0000.07716.33
5.4.90.0130.06716.26
5.4.80.0070.04016.31
5.4.70.0070.04716.32
5.4.60.0000.07716.39
5.4.50.0070.06716.18
5.4.40.0030.04316.29
5.4.30.0000.04716.41
5.4.20.0030.05316.28
5.4.10.0070.07316.41
5.4.00.0000.08015.66
5.3.290.0070.08014.52
5.3.280.0070.08014.58
5.3.270.0130.06314.56
5.3.260.0000.04014.57
5.3.250.0100.03014.56
5.3.240.0070.06014.42
5.3.230.0070.04714.52
5.3.220.0100.06714.56
5.3.210.0130.06314.55
5.3.200.0000.08014.51
5.3.190.0170.07014.47
5.3.180.0130.06314.54
5.3.170.0100.03014.43
5.3.160.0130.06014.42
5.3.150.0070.05014.54
5.3.140.0030.07314.50
5.3.130.0130.06714.53
5.3.120.0100.06314.53
5.3.110.0070.04714.50
5.3.100.0030.04314.03
5.3.90.0070.06713.97
5.3.80.0030.04313.78
5.3.70.0000.08013.77
5.3.60.0000.04713.99
5.3.50.0130.07313.92
5.3.40.0030.03713.80
5.3.30.0130.05713.85
5.3.20.0070.06713.70
5.3.10.0070.07313.64
5.3.00.0030.04313.58
5.2.170.0000.06711.16
5.2.160.0000.04711.10
5.2.150.0030.05011.10
5.2.140.0030.05311.10
5.2.130.0130.05311.16
5.2.120.0070.03311.09
5.2.110.0070.06711.06
5.2.100.0130.05010.98
5.2.90.0070.04011.05
5.2.80.0030.05310.91
5.2.70.0030.06010.93
5.2.60.0000.06011.12
5.2.50.0030.06311.06
5.2.40.0070.06310.94
5.2.30.0070.06310.71
5.2.20.0030.05010.91
5.2.10.0030.05310.93
5.2.00.0030.06010.71
5.1.60.0100.0379.98
5.1.50.0030.02310.05
5.1.40.0070.0509.81
5.1.30.0030.03010.39
5.1.20.0130.04010.39
5.1.10.0070.05710.07
5.1.00.0000.04010.07
5.0.50.0030.0478.61
5.0.40.0030.0208.40
5.0.30.0030.0338.07
5.0.20.0030.0208.27
5.0.10.0000.0378.00
5.0.00.0000.0438.16
4.4.90.0030.0337.86
4.4.80.0030.0377.86
4.4.70.0030.0277.86
4.4.60.0030.0307.86
4.4.50.0070.0307.86
4.4.40.0070.0477.86
4.4.30.0070.0237.86
4.4.20.0030.0177.86
4.4.10.0000.0177.86
4.4.00.0000.0537.86
4.3.110.0030.0177.86
4.3.100.0030.0177.86
4.3.90.0000.0177.86
4.3.80.0000.0277.86
4.3.70.0030.0277.86
4.3.60.0000.0237.86
4.3.50.0000.0207.86
4.3.40.0030.0507.86
4.3.30.0000.0337.86
4.3.20.0000.0377.86
4.3.10.0000.0137.86
4.3.00.0000.0277.86

preferences:
45.06 ms | 400 KiB | 5 Q