3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "a"; echo $a + -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)
8.3.60.0090.00616.62
8.3.50.0100.00618.30
8.3.40.0110.00718.82
8.3.30.0070.00718.72
8.3.20.0080.00018.60
8.3.10.0090.00020.61
8.3.00.0030.00519.51
8.2.180.0130.00616.50
8.2.170.0040.01122.96
8.2.160.0040.01120.55
8.2.150.0030.00624.18
8.2.140.0000.00824.66
8.2.130.0000.00826.16
8.2.120.0050.00318.63
8.2.110.0070.00320.97
8.2.100.0080.00418.03
8.2.90.0000.00819.23
8.2.80.0050.00317.97
8.2.70.0000.01117.25
8.2.60.0000.01117.68
8.2.50.0080.00018.10
8.2.40.0040.00417.92
8.2.30.0000.00818.02
8.2.20.0030.00619.30
8.2.10.0020.00517.79
8.2.00.0000.00917.73
8.1.280.0100.00725.92
8.1.270.0000.00724.66
8.1.260.0050.00326.35
8.1.250.0090.00028.09
8.1.240.0000.00923.92
8.1.230.0080.00417.77
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0030.00617.36
8.1.190.0000.00817.22
8.1.180.0080.00018.10
8.1.170.0000.00818.64
8.1.160.0030.00518.78
8.1.150.0000.01018.47
8.1.140.0080.00017.36
8.1.130.0050.00317.80
8.1.120.0040.00417.39
8.1.110.0080.00017.29
8.1.100.0040.00417.25
8.1.90.0040.00417.37
8.1.80.0040.00417.42
8.1.70.0030.00317.39
8.1.60.0000.00717.56
8.1.50.0030.00617.45
8.1.40.0050.00317.52
8.1.30.0030.00617.61
8.1.20.0000.00817.59
8.1.10.0000.00817.55
8.1.00.0040.00417.46
8.0.300.0040.00420.78
8.0.290.0040.00416.75
8.0.280.0000.00718.34
8.0.270.0070.00017.14
8.0.260.0030.00316.80
8.0.250.0050.00316.95
8.0.240.0000.01016.93
8.0.230.0000.00816.82
8.0.220.0070.00016.79
8.0.210.0000.00716.91
8.0.200.0030.00316.95
8.0.190.0040.00416.94
8.0.180.0050.00216.83
8.0.170.0050.00516.88
8.0.160.0050.00216.92
8.0.150.0000.00816.87
8.0.140.0050.00516.81
8.0.130.0030.00313.27
8.0.120.0040.00416.81
8.0.110.0070.00016.67
8.0.100.0000.00716.87
8.0.90.0060.00316.95
8.0.80.0070.00816.87
8.0.70.0040.00416.82
8.0.60.0000.00716.77
8.0.50.0040.00416.86
8.0.30.0100.01017.09
8.0.20.0100.00917.16
8.0.10.0000.00816.90
8.0.00.0090.01216.54
7.4.330.0000.00512.90
7.4.320.0030.00316.44
7.4.300.0030.00316.50
7.4.290.0000.00716.51
7.4.280.0050.00216.48
7.4.270.0030.00316.38
7.4.260.0030.00313.19
7.4.250.0080.00016.54
7.4.240.0030.00316.57
7.4.230.0000.00716.59
7.4.220.0160.00616.51
7.4.210.0090.00616.29
7.4.200.0000.00716.54
7.4.190.0040.00416.31
7.4.160.0040.01216.71
7.4.150.0150.00916.53
7.4.140.0120.00616.25
7.4.130.0110.00516.39
7.4.120.0090.00616.64
7.4.110.0160.00616.31
7.4.100.0060.00916.47
7.4.90.0130.00616.18
7.4.80.0140.00919.39
7.4.70.0110.00816.46
7.4.60.0100.00716.37
7.4.50.0000.00916.21
7.4.40.0070.00416.39
7.4.30.0030.01316.45
7.4.00.0060.01015.10
7.3.330.0000.00813.10
7.3.320.0000.00713.16
7.3.310.0030.00316.08
7.3.300.0000.00716.25
7.3.290.0050.01016.24
7.3.280.0080.00916.22
7.3.270.0150.00416.34
7.3.260.0190.00016.32
7.3.250.0110.01016.36
7.3.240.0140.00816.31
7.3.230.0110.00916.50
7.3.210.0030.01416.45
7.3.200.0130.00716.60
7.3.190.0100.01016.38
7.3.180.0100.00616.27
7.3.170.0030.01216.41
7.3.160.0060.00916.26
7.3.120.0060.01114.75
7.2.330.0070.01016.50
7.2.320.0130.00616.32
7.2.310.0130.00616.57
7.2.300.0090.00616.48
7.2.290.0110.00916.42
7.2.60.0130.00317.04
7.2.00.0000.00919.24
7.1.200.0040.00415.69
7.1.100.0040.00718.05
7.1.70.0000.00717.00
7.1.60.0160.00319.31
7.1.50.0000.02116.53
7.1.00.0000.03722.44
7.0.200.0240.00316.49
7.0.140.0100.06722.07
7.0.120.0030.04722.09
7.0.60.0200.05019.91
7.0.50.0030.06017.87
7.0.40.0070.04317.69
7.0.30.0100.07017.75
7.0.20.0130.03317.69
7.0.10.0000.06017.68
7.0.00.0030.04017.73
5.6.280.0070.06721.00
5.6.210.0170.03320.54
5.6.200.0030.08718.09
5.6.190.0100.08018.15
5.6.180.0100.08018.16
5.6.170.0030.08318.18
5.6.160.0070.03718.23
5.6.150.0030.04018.17
5.6.140.0030.04018.18
5.6.130.0030.04018.11
5.6.120.0070.04018.21
5.6.110.0000.04318.11
5.6.100.0000.04018.17
5.6.90.0070.04318.07
5.6.80.0070.03317.61
5.6.70.0070.03317.59
5.6.60.0000.04017.55
5.6.50.0100.03717.54
5.6.40.0000.04017.57
5.6.30.0030.03717.53
5.6.20.0030.03717.58
5.6.10.0100.03017.47
5.6.00.0000.04317.51
5.5.350.3900.04320.46
5.5.340.0000.08317.91
5.5.330.0130.07317.98
5.5.320.0030.08018.02
5.5.310.0070.07717.97
5.5.300.0070.04317.88
5.5.290.0200.03317.98
5.5.280.0100.04317.91
5.5.270.0070.03717.96
5.5.260.0130.03317.87
5.5.250.0030.04017.82
5.5.240.0000.04317.30
5.5.230.0030.03717.39
5.5.220.0030.03717.30
5.5.210.0070.04017.40
5.5.200.0030.03717.33
5.5.190.0030.03717.26
5.5.180.0100.03017.38
5.5.160.0030.03717.36
5.5.150.0000.04017.30
5.5.140.0000.04017.29
5.5.130.0070.08017.36
5.5.120.0100.03317.27
5.5.110.0030.08017.36
5.5.100.0070.04017.23
5.5.90.0030.05717.19
5.5.80.0070.04017.19
5.5.70.0130.04717.13
5.5.60.0100.05317.22
5.5.50.0100.07717.20
5.5.40.0070.06317.21
5.5.30.0030.08017.15
5.5.20.0030.06317.25
5.5.10.0030.08017.25
5.5.00.0170.05717.26
5.4.450.0000.04319.24
5.4.440.0070.03719.40
5.4.430.0000.04019.28
5.4.420.0100.05719.33
5.4.410.0030.04319.36
5.4.400.0100.03019.01
5.4.390.0070.03719.01
5.4.380.0100.03019.13
5.4.370.0030.03718.96
5.4.360.0030.03719.09
5.4.350.0000.04018.82
5.4.340.0070.04018.82
5.4.320.0000.04018.97
5.4.310.0030.04319.07
5.4.300.0070.03718.84
5.4.290.0100.05018.96
5.4.280.0070.04719.12
5.4.270.0030.04019.12
5.4.260.0000.07318.90
5.4.250.0000.08719.06
5.4.240.0070.03318.95
5.4.230.0000.04018.98
5.4.220.0100.05018.98
5.4.210.0070.05018.88
5.4.200.0000.05719.12
5.4.190.0000.08019.06
5.4.180.0070.06319.11
5.4.170.0000.08018.94
5.4.160.0130.05019.07
5.4.150.0030.05719.09
5.4.140.0000.05316.31
5.4.130.0030.08016.30
5.4.120.0030.05016.16
5.4.110.0070.06716.38
5.4.100.0070.06316.32
5.4.90.0100.06716.28
5.4.80.0070.07016.27
5.4.70.0070.07016.41
5.4.60.0070.07016.30
5.4.50.0100.06716.33
5.4.40.0030.05316.26
5.4.30.0200.05716.25
5.4.20.0030.04716.15
5.4.10.0030.06716.20
5.4.00.0100.07315.84
5.3.290.0070.03714.49
5.3.280.0170.05314.53
5.3.270.0130.07014.54
5.3.260.0030.05714.42
5.3.250.0030.05714.54
5.3.240.0000.08014.54
5.3.230.0100.07014.69
5.3.220.0030.08014.48
5.3.210.0130.04014.34
5.3.200.0100.05714.50
5.3.190.0070.07314.51
5.3.180.0070.04714.52
5.3.170.0070.07714.63
5.3.160.0130.05314.52
5.3.150.0100.07314.50
5.3.140.0030.06314.48
5.3.130.0100.07014.39
5.3.120.0030.06014.50
5.3.110.0200.06314.40
5.3.100.0070.07313.97
5.3.90.0100.04713.84
5.3.80.0030.04713.77
5.3.70.0030.04013.96
5.3.60.0070.07013.75
5.3.50.0130.07013.89
5.3.40.0070.05313.91
5.3.30.0030.07713.68
5.3.20.0100.06713.68
5.3.10.0030.04313.62
5.3.00.0130.05313.59
5.2.170.0200.02311.11
5.2.160.0030.06311.11
5.2.150.0030.03710.97
5.2.140.0030.06011.13
5.2.130.0030.04011.00
5.2.120.0100.05711.06
5.2.110.0070.04710.92
5.2.100.0030.06311.09
5.2.90.0070.04711.07
5.2.80.0070.04010.86
5.2.70.0070.04310.86
5.2.60.0030.03310.82
5.2.50.0030.04010.99
5.2.40.0000.04010.81
5.2.30.0070.06311.11
5.2.20.0100.04010.98
5.2.10.0030.03010.69
5.2.00.0030.05310.76
5.1.60.0000.0509.82
5.1.50.0100.03310.05
5.1.40.0030.0579.93
5.1.30.0030.05310.32
5.1.20.0030.05710.35
5.1.10.0030.04310.13
5.1.00.0030.03310.27
5.0.50.0000.0378.53
5.0.40.0030.0238.39
5.0.30.0000.0338.27
5.0.20.0030.0438.26
5.0.10.0030.0378.37
5.0.00.0030.0678.12
4.4.90.0030.0207.80
4.4.80.0000.0277.80
4.4.70.0000.0207.80
4.4.60.0030.0377.80
4.4.50.0000.0377.80
4.4.40.0030.0437.80
4.4.30.0000.0177.80
4.4.20.0030.0207.80
4.4.10.0000.0207.80
4.4.00.0000.0477.80
4.3.110.0000.0177.80
4.3.100.0000.0277.80
4.3.90.0030.0277.80
4.3.80.0030.0477.80
4.3.70.0000.0307.80
4.3.60.0070.0337.80
4.3.50.0000.0277.80
4.3.40.0000.0537.80
4.3.30.0030.0237.80
4.3.20.0030.0277.80
4.3.10.0070.0337.80
4.3.00.0000.0307.80

preferences:
44.63 ms | 401 KiB | 5 Q