3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = empty(''); var_dump($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)
8.3.60.0180.00718.30
8.3.50.0140.00018.26
8.3.40.0080.01118.48
8.3.30.0100.00718.64
8.3.20.0040.00424.18
8.3.10.0070.00024.66
8.3.00.0070.00026.16
8.2.180.0090.00625.92
8.2.170.0070.00718.79
8.2.160.0030.01022.96
8.2.150.0000.00725.66
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0040.00426.16
8.2.110.0060.00322.24
8.2.100.0040.00817.72
8.2.90.0000.00819.47
8.2.80.0000.00818.73
8.2.70.0000.00817.35
8.2.60.0000.00917.91
8.2.50.0000.00818.07
8.2.40.0080.00019.95
8.2.30.0060.00317.52
8.2.20.0040.00420.52
8.2.10.0050.00317.57
8.2.00.0000.00719.04
8.1.280.0090.00625.92
8.1.270.0080.00023.99
8.1.260.0040.00426.35
8.1.250.0090.00028.09
8.1.240.0040.00423.88
8.1.230.0080.00317.83
8.1.220.0080.00017.74
8.1.210.0080.00018.77
8.1.200.0030.00617.22
8.1.190.0040.00417.23
8.1.180.0060.00319.13
8.1.170.0080.00018.65
8.1.160.0030.00718.80
8.1.150.0000.00818.43
8.1.140.0000.00717.42
8.1.130.0070.00018.71
8.1.120.0000.00717.22
8.1.110.0030.00517.24
8.1.100.0050.00217.40
8.1.90.0040.00417.34
8.1.80.0070.00317.29
8.1.70.0050.00317.39
8.1.60.0030.00617.53
8.1.50.0080.00017.42
8.1.40.0040.00417.49
8.1.30.0060.00317.46
8.1.20.0040.00417.59
8.1.10.0050.00317.41
8.1.00.0020.00517.38
8.0.300.0050.00218.77
8.0.290.0040.00416.63
8.0.280.0030.00318.27
8.0.270.0030.00316.77
8.0.260.0000.00618.35
8.0.250.0090.00016.87
8.0.240.0000.00816.79
8.0.230.0040.00416.87
8.0.220.0040.00416.80
8.0.210.0070.00016.88
8.0.200.0000.00616.86
8.0.190.0080.00016.91
8.0.180.0000.00716.74
8.0.170.0060.00316.82
8.0.160.0000.00716.76
8.0.150.0030.00316.84
8.0.140.0000.00716.68
8.0.130.0190.00416.71
8.0.120.0150.00616.80
8.0.110.0160.00616.77
8.0.100.0180.00516.75
8.0.90.0180.00516.81
8.0.80.0180.00416.82
8.0.70.0200.00316.60
8.0.60.0220.00016.77
8.0.50.0130.01016.78
8.0.30.0170.00816.69
8.0.20.0180.00416.68
8.0.10.0110.01116.85
8.0.00.0060.00616.84
7.4.330.0050.00015.55
7.4.320.0070.00016.52
7.4.300.0000.00616.28
7.4.290.0070.00016.44
7.4.280.0040.00416.44
7.4.270.0000.00816.57
7.4.260.0140.01116.41
7.4.250.0250.00016.42
7.4.240.0240.00016.50
7.4.230.0150.01016.38
7.4.220.0130.00716.44
7.4.210.0110.00916.49
7.4.200.0170.00316.49
7.4.190.0150.00616.60
7.4.180.0120.01016.55
7.4.160.0140.00616.31
7.4.150.0170.00416.32
7.4.140.0190.00316.38
7.4.130.0120.00916.27
7.4.120.0170.00316.36
7.4.110.0210.00016.32
7.4.100.0130.00916.46
7.4.90.0110.01116.21
7.4.80.0150.00716.21
7.4.70.0150.00516.20
7.4.60.0150.00616.20
7.4.50.0160.00516.23
7.4.40.0180.00416.16
7.4.30.0100.00316.30
7.4.20.0100.00016.22
7.4.10.0080.00416.32
7.4.00.0070.00716.34
7.3.330.0080.00215.93
7.3.320.0000.01016.20
7.3.310.0090.00616.14
7.3.300.0070.00315.89
7.3.290.0030.00715.84
7.3.280.0080.00316.11
7.3.270.0060.00516.07
7.3.260.0070.00515.90
7.3.250.0090.00015.88
7.3.240.0070.00316.16
7.3.230.0040.00916.08
7.3.220.0040.00615.64
7.3.210.0110.00016.09
7.3.200.0050.00515.86
7.3.190.0070.00416.00
7.3.180.0050.00516.03
7.3.170.0000.00915.94
7.3.160.0030.00615.82
7.3.150.0110.00016.09
7.3.140.0000.01015.87
7.3.130.0070.00415.91
5.6.400.0060.00415.60

preferences:
27.72 ms | 400 KiB | 5 Q