3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo(): ?string { return ''; } function bar(): ?string { return null; } foo(); bar();

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)
8.3.60.0000.01516.50
8.3.50.0070.01018.15
8.3.40.0150.00418.50
8.3.30.0070.00718.51
8.3.20.0040.00421.60
8.3.10.0080.00021.61
8.3.00.0030.00619.31
8.2.180.0180.00016.50
8.2.170.0120.00618.79
8.2.160.0120.00922.96
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0050.00326.16
8.2.120.0000.00720.94
8.2.110.0100.00021.12
8.2.100.0130.00019.35
8.2.90.0030.00519.45
8.2.80.0000.00817.97
8.2.70.0070.00463.86
8.2.60.0050.00617.38
8.2.50.0100.00217.55
8.2.40.0070.00419.04
8.2.30.0050.00618.18
8.2.20.0110.00217.38
8.2.10.0080.00317.71
8.2.00.0070.00417.33
8.1.280.0110.00325.92
8.1.270.0030.00524.66
8.1.260.0000.00826.35
8.1.250.0090.00628.09
8.1.240.0040.00423.96
8.1.230.0110.00020.97
8.1.220.0090.00017.74
8.1.210.0000.00818.77
8.1.200.0110.00748.13
8.1.190.0080.00417.10
8.1.180.0090.00317.42
8.1.170.0080.00317.83
8.1.160.0080.00217.67
8.1.150.0070.00417.72
8.1.140.0090.00417.16
8.1.130.0090.00317.75
8.1.120.0050.00517.19
8.1.110.0090.00216.95
8.1.100.0080.00317.11
8.1.90.0090.00517.14
8.1.80.0080.00617.14
8.1.70.0060.00717.12
8.1.60.0090.00617.27
8.1.50.0090.00517.27
8.1.40.0080.00617.25
8.1.30.0090.00817.36
8.1.20.0090.00717.32
8.1.10.0080.00617.16
8.1.00.0080.00517.26
8.0.300.0040.00419.63
8.0.290.0030.00516.58
8.0.280.0020.00717.49
8.0.270.0110.00016.87
8.0.260.0060.00517.75
8.0.250.0060.00516.68
8.0.240.0030.00816.68
8.0.230.0080.00316.77
8.0.220.0100.00316.61
8.0.210.0070.00516.66
8.0.200.0100.00316.74
8.0.190.0100.00416.72
8.0.180.0080.00516.72
8.0.170.0070.00616.72
8.0.160.0070.00616.68
8.0.150.0080.00616.64
8.0.140.0070.00616.63
8.0.130.0090.00316.05
8.0.120.0060.00616.69
8.0.110.0070.00516.66
8.0.100.0090.00516.70
8.0.90.0080.00616.66
8.0.80.0110.00416.68
8.0.70.0080.00516.68
8.0.60.0100.00416.67
8.0.50.0090.00516.71
8.0.30.0130.00516.73
8.0.20.0130.00616.93
8.0.10.0110.00616.85
8.0.00.0120.00916.84
7.4.330.0030.00616.06
7.4.320.0120.00016.43
7.4.300.0050.00516.45
7.4.290.0050.00816.48
7.4.280.0120.00416.44
7.4.270.0060.00516.46
7.4.260.0050.00516.42
7.4.250.0070.00516.46
7.4.240.0100.00516.46
7.4.230.0060.00916.44
7.4.220.0070.00416.42
7.4.210.0070.00816.44
7.4.200.0100.00216.30
7.4.190.0090.00316.39
7.4.180.0080.00416.33
7.4.160.0100.00716.47
7.4.150.0130.00616.37
7.4.140.0110.00716.86
7.4.130.0100.00716.23
7.4.120.0110.00716.40
7.4.110.0100.00616.35
7.4.100.0130.00516.35
7.4.90.0120.00616.31
7.4.80.0100.00816.33
7.4.70.0100.00816.30
7.4.60.0110.00616.27
7.4.50.0090.00816.24
7.4.40.0110.00716.27
7.4.30.0100.00722.05
7.4.20.0110.00716.31
7.4.10.0100.00816.34
7.4.00.0090.00916.01
7.3.330.0120.00415.74
7.3.320.0110.00515.66
7.3.310.0120.00316.17
7.3.300.0110.00416.22
7.3.290.0090.00716.24
7.3.280.0110.00616.19
7.3.270.0110.00716.14
7.3.260.0110.00716.27
7.3.250.0090.01016.23
7.3.240.0140.00616.20
7.3.230.0110.00916.21
7.3.220.0110.00816.19
7.3.210.0130.00816.18
7.3.200.0100.00816.16
7.3.190.0130.00616.22
7.3.180.0110.00816.28
7.3.170.0110.00716.21
7.3.160.0110.00816.18
7.3.150.0110.00716.30
7.3.140.0100.00816.25
7.3.130.0090.00916.24
7.3.120.0110.00715.90
7.3.110.0090.00815.56
7.3.100.0100.00715.52
7.3.90.0090.00715.50
7.3.80.0090.00815.33
7.3.70.0090.00715.27
7.3.60.0090.00815.24
7.3.50.0080.00915.22
7.3.40.0090.00715.22
7.3.30.0080.00815.17
7.3.20.0240.00815.63
7.3.10.0180.00815.61
7.3.00.0180.00715.63
7.2.340.0140.00716.25
7.2.330.0120.00916.24
7.2.320.0140.00616.27
7.2.310.0110.00816.26
7.2.300.0120.00916.29
7.2.290.0100.01016.28
7.2.280.0100.01016.26
7.2.270.0110.00916.25
7.2.260.0110.00916.30
7.2.250.0090.00915.96
7.2.240.0090.00815.72
7.2.230.0090.00915.62
7.2.220.0110.00815.55
7.2.210.0100.00715.47
7.2.200.0090.00815.39
7.2.190.0090.00815.33
7.2.180.0090.00815.36
7.2.170.0090.00815.35
7.2.160.0090.00815.26
7.2.150.0150.00815.80
7.2.140.0200.00715.77
7.2.130.0290.00815.79
7.2.120.0200.00815.76
7.2.110.0160.00915.78
7.2.100.0200.00815.76
7.2.90.0230.00815.79
7.2.80.0240.00815.76
7.2.70.0280.00915.74
7.2.60.0220.00815.79
7.2.50.0210.00815.78
7.2.40.0210.00815.79
7.2.30.0220.00815.80
7.2.20.0220.00815.78
7.2.10.0260.00915.77
7.2.00.0250.00915.78
7.1.330.0130.00715.05
7.1.320.0130.00814.93
7.1.310.0130.00714.84
7.1.300.0140.00714.81
7.1.290.0120.00714.82
7.1.280.0120.00714.79
7.1.270.0180.00814.73
7.1.260.0190.00714.73
7.1.250.0240.00814.67
7.1.240.0200.00714.65
7.1.230.0200.00814.65
7.1.220.0230.00814.65
7.1.210.0210.00814.63
7.1.200.0260.00814.65
7.1.190.0250.00714.65
7.1.180.0250.00814.63
7.1.170.0330.00814.64
7.1.160.0280.00714.62
7.1.150.0260.00814.63
7.1.140.0280.00714.65
7.1.130.0250.00814.68
7.1.120.0280.00814.66
7.1.110.0290.00714.68
7.1.100.0240.00814.67
7.1.90.0280.00814.68
7.1.80.0220.00814.64
7.1.70.0240.00814.62
7.1.60.0230.00814.91
7.1.50.0260.00814.86
7.1.40.0250.00914.85
7.1.30.0230.00814.89
7.1.20.0240.00716.58
7.1.10.0240.00714.62
7.1.00.0290.00814.61
7.0.330.0220.00614.26
7.0.320.0250.00714.50
7.0.310.0260.00714.48
7.0.300.0190.00814.48
7.0.290.0240.00814.49
7.0.280.0230.00714.44
7.0.270.0240.00814.51
7.0.260.0230.00814.51
7.0.250.0250.00714.59
7.0.240.0240.00814.57
7.0.230.0200.00814.55
7.0.220.0220.00814.52
7.0.210.0230.00814.49
7.0.200.0190.00814.48
7.0.190.0200.00714.51
7.0.180.0200.00814.52
7.0.170.0190.00814.55
7.0.160.0190.00714.49
7.0.150.0220.00714.47
7.0.140.0190.00814.51
7.0.130.0220.00814.54
7.0.120.0230.00814.53
7.0.110.0190.00714.53
7.0.100.0200.00714.50
7.0.90.0200.00814.51
7.0.80.0200.00714.50
7.0.70.0200.00814.51
7.0.60.0190.00814.47
7.0.50.0190.00814.57
7.0.40.0240.00714.54
7.0.30.0190.00814.54
7.0.20.0160.00814.45
7.0.10.0190.00914.55
7.0.00.0190.00714.51
5.6.400.0120.00914.54
5.6.390.0120.00914.53
5.6.380.0130.00914.55
5.6.370.0130.00914.77
5.6.360.0130.00914.75
5.6.350.0130.00914.76
5.6.340.0140.00814.75
5.6.330.0120.01014.75
5.6.320.0130.00914.78
5.6.310.0130.00914.76
5.6.300.0140.01014.84
5.6.290.0140.01014.91
5.6.280.0140.01014.89
5.6.270.0140.01014.89
5.6.260.0130.01014.87
5.6.250.0140.00914.88
5.6.240.0140.00914.89
5.6.230.0130.01114.89
5.6.220.0140.01014.85
5.6.210.0140.01014.86
5.6.200.0140.01014.87
5.6.190.0130.01014.85
5.6.180.0140.00914.87
5.6.170.0140.01014.85
5.6.160.0130.01114.84
5.6.150.0130.01014.84
5.6.140.0140.01014.86
5.6.130.0140.00914.87
5.6.120.0140.01014.87
5.6.110.0140.01014.86
5.6.100.0130.01114.84
5.6.90.0150.00914.84
5.6.80.0140.00914.76
5.6.70.0130.00914.79
5.6.60.0130.01014.79
5.6.50.0120.01114.77
5.6.40.0130.00914.82
5.6.30.0140.01014.77
5.6.20.0130.01014.78
5.6.10.0130.01014.80
5.6.00.0130.01014.81
5.3.290.0060.00279.33

preferences:
90.3 ms | 401 KiB | 5 Q