3v4l.org

run code in 300+ PHP versions simultaneously
<?php function a() { return 'a'; } echo ${$a=a()}();

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)
8.3.40.0000.01418.89
8.3.30.0140.00018.54
8.3.20.0040.00418.64
8.3.10.0000.00820.44
8.3.00.0060.00319.13
8.2.170.0070.00722.96
8.2.160.0130.00321.20
8.2.150.0040.01124.18
8.2.140.0080.00024.66
8.2.130.0000.00726.16
8.2.120.0040.00419.65
8.2.110.0100.00321.18
8.2.100.0030.00717.91
8.2.90.0000.00919.47
8.2.80.0040.00419.39
8.2.70.0040.00417.38
8.2.60.0050.00517.79
8.2.50.0050.00318.07
8.2.40.0090.00018.03
8.2.30.0000.00718.04
8.2.20.0070.00017.71
8.2.10.0000.00717.66
8.2.00.0060.00617.55
8.1.270.0040.00424.66
8.1.260.0040.00426.35
8.1.250.0060.00328.09
8.1.240.0090.00022.70
8.1.230.0040.00720.80
8.1.220.0000.00717.79
8.1.210.0080.00318.77
8.1.200.0090.00017.13
8.1.190.0000.00717.39
8.1.180.0030.00618.10
8.1.170.0040.00418.80
8.1.160.0040.00418.81
8.1.150.0000.00818.57
8.1.140.0080.00417.52
8.1.130.0070.00017.73
8.1.120.0040.00417.41
8.1.110.0000.00817.47
8.1.100.0040.00417.34
8.1.90.0000.00817.40
8.1.80.0080.00017.35
8.1.70.0000.00717.38
8.1.60.0080.00017.58
8.1.50.0030.00617.44
8.1.40.0080.00017.43
8.1.30.0050.00217.67
8.1.20.0080.00017.55
8.1.10.0050.00217.57
8.1.00.0050.00517.55
8.0.300.0070.00019.89
8.0.290.0000.00716.75
8.0.280.0000.00718.43
8.0.270.0000.00817.25
8.0.260.0000.00816.82
8.0.250.0040.00416.98
8.0.240.0030.00616.94
8.0.230.0000.00816.95
8.0.220.0000.00716.80
8.0.210.0040.00316.78
8.0.200.0070.00016.93
8.0.190.0040.00416.94
8.0.180.0040.00416.90
8.0.170.0040.00416.79
8.0.160.0050.00316.80
8.0.150.0030.00516.72
8.0.140.0030.00916.86
8.0.130.0030.00313.27
8.0.120.0040.00416.79
8.0.110.0040.00416.80
8.0.100.0070.00016.94
8.0.90.0030.00416.84
8.0.80.0120.00316.82
8.0.70.0000.00716.73
8.0.60.0000.00816.88
8.0.50.0040.00416.93
8.0.30.0110.00816.93
8.0.20.0060.01217.05
8.0.10.0000.00816.89
8.0.00.0080.01016.76
7.4.330.0000.00512.92
7.4.320.0040.00416.66
7.4.300.0000.00616.59
7.4.290.0030.00316.58
7.4.280.0040.00416.63
7.4.270.0080.00016.51
7.4.260.0000.00613.19
7.4.250.0000.00816.41
7.4.240.0030.00316.40
7.4.230.0000.00716.61
7.4.220.0070.01716.65
7.4.210.0050.01316.54
7.4.200.0060.00316.69
7.4.190.0030.00316.41
7.4.160.0070.01016.51
7.4.150.0120.00616.37
7.4.140.0130.01116.49
7.4.130.0090.00816.55
7.4.120.0120.00516.51
7.4.110.0090.00916.58
7.4.100.0140.00316.51
7.4.90.0140.00316.51
7.4.80.0150.00616.45
7.4.70.0130.00616.44
7.4.60.0080.00816.52
7.4.50.0030.00516.61
7.4.40.0040.00716.20
7.4.30.0080.00816.45
7.4.00.0000.01715.03
7.3.330.0060.00013.09
7.3.320.0000.00613.20
7.3.310.0040.00416.23
7.3.300.0000.00716.20
7.3.290.0090.00616.23
7.3.280.0050.01116.22
7.3.270.0120.00616.59
7.3.260.0070.01016.44
7.3.250.0120.00516.49
7.3.240.0080.00816.25
7.3.230.0130.00316.24
7.3.210.0100.01016.27
7.3.200.0120.00319.39
7.3.190.0000.01716.54
7.3.180.0030.01316.45
7.3.170.0100.00616.30
7.3.160.0030.01216.35
7.3.120.0090.00614.91
7.2.330.0070.01016.56
7.2.320.0130.01016.66
7.2.310.0100.01016.53
7.2.300.0070.01016.79
7.2.290.0040.01416.41
7.2.00.0170.00319.25
7.1.100.0070.00418.28
7.1.70.0080.00316.96
7.1.60.0100.01319.40
7.1.50.0070.01416.39
7.1.00.0000.07722.34
7.0.200.0000.00816.41
7.0.140.0000.07321.95
7.0.120.0030.07321.97
7.0.60.0000.04720.00
7.0.50.0070.08717.85
7.0.40.0100.05020.04
7.0.30.0330.04020.11
7.0.20.0200.04020.23
7.0.10.0170.04320.05
7.0.00.0100.07020.25
5.6.280.0100.06721.14
5.6.210.0030.06720.69
5.6.200.0070.03718.13
5.6.190.0030.09020.52
5.6.180.0200.04320.63
5.6.170.0300.06320.56
5.6.160.0070.06320.39
5.6.150.0030.04018.11
5.6.140.0070.03718.28
5.6.130.0100.05018.13
5.6.120.0130.04320.99
5.6.110.0070.08721.14
5.6.100.0170.07321.13
5.6.90.0070.07321.10
5.6.80.0070.08320.41
5.5.350.0070.07320.37
5.5.340.0070.07717.98
5.5.330.0070.04020.40
5.5.320.0400.06720.35
5.5.310.0300.07720.38
5.5.300.0030.04317.91
5.5.290.0100.07017.94
5.5.280.0130.04020.93
5.5.270.0000.04720.76
5.5.260.0170.06720.84
5.5.250.0030.04020.46
5.5.240.4230.03320.34
5.4.450.0000.04019.48
5.4.440.0100.03719.30
5.4.430.0030.04019.47
5.4.420.0000.04019.30
5.4.410.0000.04719.44
5.4.400.0070.04019.15
5.4.390.0070.07718.87
5.4.380.0100.04319.00
5.4.370.0100.03318.85
5.4.360.0070.06718.94
5.4.350.0000.04719.24
5.4.340.0030.04719.16
5.4.320.0070.07318.86
5.4.310.0070.07319.24
5.4.300.0130.07318.87
5.4.290.0070.07319.09
5.4.280.0030.04319.24
5.4.270.0070.06319.23
5.4.260.0030.06719.24
5.4.250.0000.08019.07
5.4.240.0030.04719.14
5.4.230.0070.03719.07
5.4.220.0070.04019.07
5.4.210.0070.07019.07
5.4.200.0070.06319.19
5.4.190.0100.07719.23
5.4.180.0070.04019.07
5.4.170.0100.06719.11
5.4.160.0100.07318.98
5.4.150.0070.08018.90
5.4.140.0100.05716.43
5.4.130.0130.07016.37
5.4.120.0030.06016.39
5.4.110.0030.05016.36
5.4.100.0070.05716.67
5.4.90.0100.05016.53
5.4.80.0000.08016.27
5.4.70.0030.07016.41
5.4.60.0030.07716.64
5.4.50.0030.08016.50
5.4.40.0070.05316.42
5.4.30.0000.07316.46
5.4.20.0030.07016.34
5.4.10.0070.06716.63
5.4.00.0130.06315.86
5.3.290.0100.04714.70
5.3.280.0030.03714.59
5.3.270.0100.07014.77
5.3.260.0030.08314.63
5.3.250.0070.07714.64
5.3.240.0070.05714.75
5.3.230.0030.04714.63
5.3.220.0070.09314.57
5.3.210.0070.07714.61
5.3.200.0070.07714.59
5.3.190.0000.08014.62
5.3.180.0030.05314.45
5.3.170.0030.04714.56
5.3.160.0000.07314.57
5.3.150.0070.04714.45
5.3.140.0030.04014.58
5.3.130.0070.05314.55
5.3.120.0070.07714.55
5.3.110.0030.07714.70
5.3.100.0030.07314.11
5.3.90.0000.07014.19
5.3.80.0030.07314.08
5.3.70.0070.06713.96
5.3.60.0030.06313.95
5.3.50.0070.04013.96
5.3.40.0030.07313.90
5.3.30.0130.03313.79
5.3.20.0030.05313.60
5.3.10.0070.04013.60
5.3.00.0030.05713.78
5.2.170.0070.06311.11
5.2.160.0030.03011.12
5.2.150.0070.06011.06
5.2.140.0030.03711.18
5.2.130.0100.05711.14
5.2.120.0070.03311.26
5.2.110.0030.06011.25
5.2.100.0000.07011.02
5.2.90.0030.06011.13
5.2.80.0030.05711.10
5.2.70.0070.06011.25
5.2.60.0000.04011.00
5.2.50.0000.05011.17
5.2.40.0170.05011.15
5.2.30.0000.03011.13
5.2.20.0030.03011.01
5.2.10.0100.04010.91
5.2.00.0130.04010.84
5.1.60.0030.0339.98
5.1.50.0070.03310.04
5.1.40.0030.0509.97
5.1.30.0030.03010.37
5.1.20.0030.06010.37
5.1.10.0000.04710.12
5.1.00.0000.04310.21
5.0.50.0030.0408.61
5.0.40.0000.0478.41
5.0.30.0000.0578.37
5.0.20.0000.0438.34
5.0.10.0030.0438.13
5.0.00.0000.0508.06
4.4.90.0030.0337.83
4.4.80.0100.0277.83
4.4.70.0000.0177.83
4.4.60.0000.0377.83
4.4.50.0000.0307.83
4.4.40.0000.0277.83
4.4.30.0000.0277.83
4.4.20.0070.0237.83
4.4.10.0100.0307.83
4.4.00.0000.0337.83
4.3.110.0000.0337.83
4.3.100.0000.0277.83
4.3.90.0000.0207.83
4.3.80.0000.0337.83
4.3.70.0070.0437.83
4.3.60.0000.0207.83
4.3.50.0000.0407.83
4.3.40.0000.0607.83
4.3.30.0030.0177.83
4.3.20.0030.0307.83
4.3.10.0000.0237.83
4.3.00.0000.0377.83

preferences:
47.01 ms | 400 KiB | 5 Q