3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'test'; $b = ~$a; echo $a.", ".$b; for ($t=0; $t<strlen($b); $t++) echo "[".ord(substr($b, $t, 1))."] ";

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)
8.3.40.0120.00318.55
8.3.30.0070.00718.79
8.3.20.0000.00720.36
8.3.10.0050.00322.05
8.3.00.0040.00422.52
8.2.170.0030.01222.96
8.2.160.0090.00620.39
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0100.00326.16
8.2.120.0050.00317.50
8.2.110.0060.00322.26
8.2.100.0110.00019.51
8.2.90.0040.00419.22
8.2.80.0040.00417.97
8.2.70.0000.00817.63
8.2.60.0000.00917.93
8.2.50.0040.00418.07
8.2.40.0050.00318.22
8.2.30.0000.00718.06
8.2.20.0000.00717.53
8.2.10.0040.00419.52
8.2.00.0000.00717.80
8.1.270.0040.00422.11
8.1.260.0000.00726.35
8.1.250.0050.00228.09
8.1.240.0030.00723.79
8.1.230.0080.00418.83
8.1.220.0000.00717.74
8.1.210.0080.00018.77
8.1.200.0030.00717.00
8.1.190.0000.00817.43
8.1.180.0030.00618.10
8.1.170.0000.00818.50
8.1.160.0070.00021.97
8.1.150.0080.00018.68
8.1.140.0000.00717.54
8.1.130.0000.00717.82
8.1.120.0040.00417.42
8.1.110.0000.00717.41
8.1.100.0050.00217.49
8.1.90.0000.00717.50
8.1.80.0070.00017.41
8.1.70.0030.00317.34
8.1.60.0100.00317.46
8.1.50.0070.00017.48
8.1.40.0000.00817.41
8.1.30.0050.00317.64
8.1.20.0040.00417.65
8.1.10.0000.00717.47
8.1.00.0000.00817.33
8.0.300.0000.00718.77
8.0.290.0080.00017.04
8.0.280.0040.00418.48
8.0.270.0070.00017.30
8.0.260.0030.00316.81
8.0.250.0040.00416.92
8.0.240.0000.00716.87
8.0.230.0000.00716.94
8.0.220.0070.00016.87
8.0.210.0030.00316.87
8.0.200.0070.00016.97
8.0.190.0030.00316.84
8.0.180.0000.00716.79
8.0.170.0030.00516.94
8.0.160.0080.00016.93
8.0.150.0000.00716.93
8.0.140.0040.00416.75
8.0.130.0040.00413.27
8.0.120.0050.00216.74
8.0.110.0040.00416.70
8.0.100.0030.00316.79
8.0.90.0030.00316.72
8.0.80.0070.00816.87
8.0.70.0030.00316.95
8.0.60.0000.00716.70
8.0.50.0000.00816.91
8.0.30.0110.00817.14
8.0.20.0120.00617.40
8.0.10.0040.00416.85
8.0.00.0120.01016.65
7.4.330.0020.00215.14
7.4.320.0000.00616.62
7.4.300.0030.00316.50
7.4.290.0070.00016.49
7.4.280.0000.00716.50
7.4.270.0000.00716.56
7.4.260.0040.00716.49
7.4.250.0070.00016.36
7.4.240.0040.00316.56
7.4.230.0000.00716.57
7.4.220.0100.00716.70
7.4.210.0050.01216.48
7.4.200.0000.00716.52
7.4.190.0070.00016.45
7.4.160.0070.01116.37
7.4.150.0030.01417.40
7.4.140.0110.00617.86
7.4.130.0060.01116.48
7.4.120.0080.01016.48
7.4.110.0120.00616.58
7.4.100.0130.01016.40
7.4.90.0080.01316.39
7.4.80.0030.01319.39
7.4.70.0030.01616.43
7.4.60.0090.00916.51
7.4.50.0030.00616.56
7.4.40.0040.01222.77
7.4.30.0100.00716.35
7.4.00.0070.01014.75
7.3.330.0030.00313.11
7.3.320.0000.00513.30
7.3.310.0030.00316.29
7.3.300.0030.00316.38
7.3.290.0030.01016.38
7.3.280.0080.00716.32
7.3.270.0030.01517.40
7.3.260.0080.00816.64
7.3.250.0150.00616.31
7.3.240.0110.00616.54
7.3.230.0070.01016.39
7.3.210.0110.01216.48
7.3.200.0130.00319.39
7.3.190.0100.00916.44
7.3.180.0030.01316.31
7.3.170.0170.00316.32
7.3.160.0160.00316.48
7.3.120.0000.01614.81
7.3.10.0030.00916.50
7.3.00.0070.00716.86
7.2.330.0100.00716.69
7.2.320.0060.01816.50
7.2.310.0090.00916.61
7.2.300.0100.01416.55
7.2.290.0050.01016.43
7.2.130.0110.00716.96
7.2.120.0040.01416.72
7.2.110.0090.00616.66
7.2.100.0030.00716.96
7.2.90.0000.01316.73
7.2.80.0070.00716.82
7.2.70.0030.01016.91
7.2.60.0060.00617.08
7.2.50.0060.00316.88
7.2.40.0040.00816.96
7.2.30.0090.00617.03
7.2.20.0040.00717.04
7.2.10.0070.00717.01
7.2.00.0080.00318.25
7.1.250.0040.00415.96
7.1.100.0040.00818.02
7.1.70.0100.01316.95
7.1.60.0030.02219.82
7.1.50.0100.01617.15
7.1.00.0070.07322.44
7.0.200.0030.00716.81
7.0.140.0100.07021.95
7.0.60.0100.08019.89
7.0.50.0030.04017.89
7.0.40.0000.04719.98
7.0.30.0230.08020.30
7.0.20.0400.06320.16
7.0.10.0000.04720.09
7.0.00.0030.09720.20
5.6.280.0070.07021.14
5.6.210.0100.07020.46
5.6.200.0070.03718.12
5.6.190.0100.05320.61
5.6.180.0500.06720.57
5.6.170.0300.07320.71
5.6.160.0000.04720.61
5.6.150.0070.05018.11
5.6.140.0030.04018.21
5.6.130.0100.08318.16
5.6.120.0030.04020.68
5.6.110.0130.07721.11
5.6.100.0070.08721.00
5.6.90.0270.07321.02
5.6.80.0100.05720.28
5.5.350.0300.07320.31
5.5.340.0000.04017.92
5.5.330.0000.06020.43
5.5.320.0430.07020.29
5.5.310.0230.04320.28
5.5.300.0030.08317.88
5.5.290.0130.05717.93
5.5.280.0000.07320.77
5.5.270.0070.07720.84
5.5.260.0100.07720.65
5.5.250.0070.08020.76
5.5.240.0230.05720.15
5.4.450.4200.04019.29
5.4.440.0070.07719.47
5.4.430.1400.05019.36
5.4.420.3970.04319.48
5.4.410.4130.03319.19
5.4.400.4830.04018.92
5.4.390.3930.04019.16
5.4.380.3870.04019.15
5.4.370.3830.03718.86
5.4.360.3800.03319.16
5.4.350.3670.03718.88
5.4.340.4070.04019.04
5.4.320.2530.03718.86
5.4.310.3700.03719.23
5.4.300.3430.04319.03
5.4.290.2970.03718.87
5.4.280.2930.03019.13
5.4.270.2430.03719.05
5.4.260.3630.03319.16
5.4.250.3600.03019.14
5.4.240.3830.03319.24
5.4.230.4500.03719.11
5.4.220.4670.04019.16
5.4.210.4770.03718.95
5.4.200.4230.04019.05
5.4.190.4770.03318.91
5.4.180.4470.03719.02
5.4.170.4870.04019.24
5.4.160.3900.03319.13
5.4.150.3930.04019.23
5.4.140.4300.03716.43
5.4.130.3930.03016.33
5.4.120.4570.03316.20
5.4.110.4530.03716.40
5.4.100.3870.04016.16
5.4.90.4830.02716.59
5.4.80.0070.03316.12
5.4.70.0130.05716.48
5.4.60.4530.02716.36
5.4.50.4530.04016.33
5.4.40.3070.04016.47
5.4.30.5530.04016.29
5.4.20.3970.04316.54
5.4.10.4170.04016.41
5.4.00.3800.03015.84
5.3.290.3100.03314.75
5.3.280.4370.03714.55
5.3.270.4500.03314.53
5.3.260.4000.03714.39
5.3.250.4400.04314.48
5.3.240.4470.04314.54
5.3.230.4000.03714.39
5.3.220.3900.03714.46
5.3.210.4470.04014.39
5.3.200.4470.03714.44
5.3.190.4500.03714.52
5.3.180.0730.04314.50
5.3.170.0070.06014.46
5.3.160.4430.03714.54
5.3.150.4070.04314.58
5.3.140.4170.03314.64
5.3.130.4030.03314.50
5.3.120.4670.04014.51
5.3.110.4270.04014.42
5.3.100.3900.03013.82
5.3.90.3770.03713.98
5.3.80.3670.03714.04
5.3.70.3670.03313.98
5.3.60.4030.04013.96
5.3.50.1530.04013.78
5.3.40.0000.08313.89
5.3.30.3600.03713.83
5.3.20.4000.03713.63
5.3.10.5770.03013.59
5.3.00.4570.04713.60
5.2.170.0000.03311.04
5.2.160.0030.05711.02
5.2.150.2570.03310.98
5.2.140.3430.03311.06
5.2.130.3470.03011.26
5.2.120.3030.03311.04
5.2.110.3700.02711.02
5.2.100.3470.02710.97
5.2.90.3430.03311.03
5.2.80.3500.03010.98
5.2.70.2870.02711.07
5.2.60.3100.03311.03
5.2.50.3230.02710.91
5.2.40.2970.03010.92
5.2.30.3130.03010.95
5.2.20.2800.03310.89
5.2.10.2730.02710.82
5.2.00.2700.02710.59
5.1.60.2670.03010.05
5.1.50.3070.0239.94
5.1.40.3170.0179.95
5.1.30.3430.02710.34
5.1.20.3330.02310.31
5.1.10.3000.0279.96
5.1.00.3370.02010.05
5.0.50.1870.0208.52
5.0.40.1500.0208.39
5.0.30.1470.0338.12
5.0.20.1800.0238.24
5.0.10.1870.0178.22
5.0.00.1970.0278.13
4.4.90.1470.0175.78
4.4.80.1470.0135.80
4.4.70.1600.0175.76
4.4.60.1570.0135.80
4.4.50.1600.0135.87
4.4.40.1430.0275.89
4.4.30.1500.0135.86
4.4.20.1870.0175.87
4.4.10.1830.0175.87
4.4.00.1770.0275.91
4.3.110.1800.0175.75
4.3.100.1430.0175.82
4.3.90.1370.0205.68
4.3.80.1870.0235.75
4.3.70.1630.0175.76
4.3.60.1530.0135.72
4.3.50.1900.0175.67
4.3.40.1900.0235.74
4.3.30.1130.0134.44
4.3.20.0930.0204.54
4.3.10.1000.0204.44
4.3.00.1030.0274.42

preferences:
46.27 ms | 400 KiB | 5 Q