3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "Lorem ipsum"; $a = strval($str); $b = (string)$str; $c = "$str";

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)
8.3.60.0110.01118.14
8.3.50.0130.00716.23
8.3.40.0060.00918.42
8.3.30.0140.00018.84
8.3.20.0030.00520.21
8.3.10.0080.00021.69
8.3.00.0050.00319.02
8.2.180.0040.01118.16
8.2.170.0140.00022.96
8.2.160.0070.00720.47
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0070.00020.98
8.2.110.0090.00019.30
8.2.100.0080.00417.89
8.2.90.0050.00518.09
8.2.80.0040.00417.97
8.2.70.0030.00617.80
8.2.60.0000.00818.03
8.2.50.0040.00418.10
8.2.40.0040.00421.07
8.2.30.0000.00719.05
8.2.20.0050.00317.61
8.2.10.0040.00417.91
8.2.00.0000.00717.72
8.1.280.0150.00325.92
8.1.270.0000.00818.79
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0040.00917.38
8.1.230.0110.00020.89
8.1.220.0000.00917.74
8.1.210.0040.00418.91
8.1.200.0030.00617.23
8.1.190.0000.00817.09
8.1.180.0040.00418.10
8.1.170.0080.00018.59
8.1.160.0050.00220.30
8.1.150.0050.00218.68
8.1.140.0040.00417.37
8.1.130.0030.00517.81
8.1.120.0000.00717.35
8.1.110.0000.00817.46
8.1.100.0000.00717.29
8.1.90.0000.00717.27
8.1.80.0040.00417.29
8.1.70.0030.00317.48
8.1.60.0040.00417.59
8.1.50.0000.00817.39
8.1.40.0040.00417.50
8.1.30.0080.00017.64
8.1.20.0040.00417.70
8.1.10.0000.00817.42
8.1.00.0000.00917.28
8.0.300.0030.00619.70
8.0.290.0000.00716.58
8.0.280.0030.00318.32
8.0.270.0030.00317.12
8.0.260.0030.00317.22
8.0.250.0030.00716.74
8.0.240.0050.00316.79
8.0.230.0000.00716.87
8.0.220.0000.00716.79
8.0.210.0000.00616.81
8.0.200.0070.00016.88
8.0.190.0000.00816.80
8.0.180.0070.00016.83
8.0.170.0030.00516.80
8.0.160.0000.00716.86
8.0.150.0070.00016.71
8.0.140.0000.00816.79
8.0.130.0040.00413.21
8.0.120.0040.00416.80
8.0.110.0070.00016.80
8.0.100.0080.00016.78
8.0.90.0020.00516.85
8.0.80.0160.00016.83
8.0.70.0040.00416.82
8.0.60.0050.00316.63
8.0.50.0000.00716.82
8.0.30.0120.00916.90
8.0.20.0040.01617.40
8.0.10.0070.00016.95
8.0.00.0100.00716.75
7.4.330.0020.00215.03
7.4.320.0030.00316.44
7.4.300.0000.00616.59
7.4.290.0030.00316.35
7.4.280.0040.00416.52
7.4.270.0030.00316.62
7.4.260.0040.00416.46
7.4.250.0070.00016.46
7.4.240.0050.00216.45
7.4.230.0030.00316.59
7.4.220.0040.01516.59
7.4.210.0120.00616.54
7.4.200.0040.00416.63
7.4.160.0000.01516.44
7.4.150.0130.00617.40
7.4.140.0110.00717.86
7.4.130.0100.00816.42
7.4.120.0160.00416.29
7.4.110.0100.01016.56
7.4.100.0130.00916.48
7.4.90.0070.01116.38
7.4.80.0100.00619.39
7.4.70.0070.01116.39
7.4.60.0130.00316.53
7.4.50.0040.00416.28
7.4.40.0110.00616.57
7.4.30.0130.00316.48
7.4.00.0090.00815.03
7.3.330.0040.00413.09
7.3.320.0000.00513.12
7.3.310.0070.00016.16
7.3.300.0000.00716.20
7.3.290.0040.01116.16
7.3.280.0070.01116.20
7.3.270.0090.00917.40
7.3.260.0100.00716.12
7.3.250.0070.01216.28
7.3.240.0110.01116.26
7.3.230.0110.00416.39
7.3.210.0100.00716.14
7.3.200.0130.01019.39
7.3.190.0100.00716.22
7.3.180.0120.00616.43
7.3.170.0120.00616.27
7.3.160.0140.00416.40
7.3.120.0080.01114.68
7.3.110.0060.00914.60
7.3.100.0070.00714.58
7.3.90.0000.01214.81
7.3.80.0070.00714.69
7.3.70.0100.00514.53
7.3.60.0070.00814.64
7.3.50.0050.00914.70
7.3.40.0130.00114.84
7.3.30.0070.00514.55
7.3.20.0050.01116.38
7.3.10.0080.00616.51
7.3.00.0060.00316.55
7.2.330.0060.01316.50
7.2.320.0070.01016.66
7.2.310.0090.00916.59
7.2.300.0090.00916.59
7.2.290.0090.01216.25
7.2.250.0050.01214.83
7.2.240.0040.01514.80
7.2.230.0100.00814.81
7.2.220.0080.01014.81
7.2.210.0100.00715.05
7.2.200.0080.00614.89
7.2.190.0090.00614.99
7.2.180.0090.00614.80
7.2.170.0090.00914.85
7.2.00.0060.00919.02
7.1.330.0100.00315.34
7.1.320.0030.00815.49
7.1.310.0040.01115.74
7.1.300.0050.00815.41
7.1.290.0070.00615.54
7.1.280.0090.00715.54
7.1.270.0010.01115.58
7.1.260.0050.00915.61
7.1.200.0120.00015.69
7.1.100.0070.00717.89
7.1.70.0000.01516.98
7.1.60.0130.01319.22
7.1.50.0100.02434.68
7.1.00.0100.07022.44
7.0.200.0040.00416.63
7.0.140.0000.06022.04
7.0.60.0070.07719.89
7.0.50.0030.04017.88
7.0.40.0070.05020.03
7.0.30.0270.04320.30
7.0.20.0370.07320.20
7.0.10.0070.06720.18
7.0.00.0130.08020.17
5.6.280.0030.07321.02
5.6.210.0130.07720.60
5.6.200.0070.06018.17
5.6.190.0070.04320.27
5.6.180.0230.06720.65
5.6.170.0200.04720.71
5.6.160.0100.07020.61
5.6.150.0170.07018.22
5.6.140.0070.03718.14
5.6.130.0100.05018.21
5.6.120.0100.06321.01
5.6.110.0030.04020.98
5.6.100.0170.10020.97
5.6.90.0070.08720.96
5.6.80.0130.07720.34
5.5.350.0230.07720.39
5.5.340.0100.07317.98
5.5.330.0070.06020.14
5.5.320.0230.03720.18
5.5.310.0400.07320.16
5.5.300.0070.03717.90
5.5.290.0070.06717.95
5.5.280.0130.07720.79
5.5.270.0100.05320.83
5.5.260.0070.05320.74
5.5.250.0000.04720.57
5.5.240.0030.03720.14
5.4.450.0100.05719.27
5.4.440.0200.05019.25
5.4.430.0170.06019.57
5.4.420.0000.07019.63
5.4.410.0170.05019.23
5.4.400.0370.05018.91
5.4.390.0170.05719.34
5.4.380.0230.05018.63
5.4.370.0230.04718.55
5.4.360.0100.06018.67
5.4.350.0100.06018.59
5.4.340.0170.05318.64
5.4.320.0400.03718.63
5.4.310.0270.04718.58
5.4.300.0170.05318.46
5.4.290.0170.05318.49
5.4.280.0230.05018.60
5.4.270.0170.05718.55
5.4.260.0230.05018.69
5.4.250.0130.05718.60
5.4.240.0370.05018.61
5.4.230.0230.04718.71
5.4.220.0230.05018.55
5.4.210.0300.04018.76
5.4.200.0200.04716.63
5.4.190.0300.04018.68
5.4.180.0130.06018.72
5.4.170.0130.05718.47
5.4.160.0230.05018.60
5.4.150.0230.05018.43
5.4.140.0100.05716.27
5.4.130.0230.05316.16
5.4.120.0170.05016.07
5.4.110.0170.05016.21
5.4.100.0200.05016.28
5.4.90.0300.04316.04
5.4.80.0200.05716.09
5.4.70.0230.05016.23
5.4.60.0170.05016.18
5.4.50.0170.04716.32
5.4.40.0200.05016.21
5.4.30.0100.05716.16
5.4.20.0130.06316.19
5.4.10.0170.04716.12
5.4.00.0200.04315.70
5.3.290.0200.05314.73
5.3.280.0200.05314.55
5.3.270.0100.06014.59
5.3.260.0170.05314.60
5.3.250.0170.05314.51
5.3.240.0170.05714.49
5.3.230.0270.04714.69
5.3.220.0200.05014.48
5.3.210.0130.05714.55
5.3.200.0130.05714.47
5.3.190.0300.05314.66
5.3.180.0170.05314.47
5.3.170.0100.05714.66
5.3.160.0100.05714.62
5.3.150.0200.04714.52
5.3.140.0100.06014.55
5.3.130.0130.06014.59
5.3.120.0200.05014.45
5.3.110.0230.05014.47
5.3.100.0300.06313.93
5.3.90.0170.05014.02
5.3.80.0200.05013.94
5.3.70.0170.05314.01
5.3.60.0130.05314.10
5.3.50.0100.06013.94
5.3.40.0200.05314.02
5.3.30.0170.05013.80
5.3.20.0200.05013.68
5.3.10.0170.05313.64
5.3.00.0170.05713.55
5.2.170.0130.04711.18
5.2.160.0130.04311.15
5.2.150.0130.04311.18
5.2.140.0130.04311.09
5.2.130.0230.04311.03
5.2.120.0170.04011.05
5.2.110.0170.04011.06
5.2.100.0070.04711.11
5.2.90.0300.02711.01
5.2.80.0130.04311.12
5.2.70.0130.04311.02
5.2.60.0230.03310.96
5.2.50.0170.04311.05
5.2.40.0130.03710.97
5.2.30.0170.03710.94
5.2.20.0100.04010.95
5.2.10.0200.03010.97
5.2.00.0130.03710.71
5.1.60.0030.04010.06
5.1.50.0070.05010.04
5.1.40.0130.0339.93
5.1.30.0100.03710.28
5.1.20.0170.03710.49
5.1.10.0130.03710.08
5.1.00.0100.04010.04
5.0.50.0070.0308.56
5.0.40.0030.0308.44
5.0.30.0000.0508.24
5.0.20.0130.0238.16
5.0.10.0100.0278.19
5.0.00.0100.0478.27
4.4.90.0070.0205.91
4.4.80.0030.0235.89
4.4.70.0030.0235.92
4.4.60.0070.0305.86
4.4.50.0000.0275.96
4.4.40.0000.0405.94
4.4.30.0070.0205.94
4.4.20.0070.0235.92
4.4.10.0100.0175.93
4.4.00.0030.0375.91
4.3.110.0000.0275.88
4.3.100.0030.0235.79
4.3.90.0070.0205.82
4.3.80.0100.0305.85
4.3.70.0100.0175.78
4.3.60.0070.0205.79
4.3.50.0030.0235.80
4.3.40.0070.0335.83
4.3.30.0070.0205.23
4.3.20.0030.0235.23
4.3.10.0000.0235.23
4.3.00.0100.0237.60

preferences:
43.73 ms | 400 KiB | 5 Q