3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(mb_substitute_character(0));

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)
8.1.100.0000.00717.27
8.1.90.0000.00717.24
8.1.80.0040.00417.34
8.1.70.0030.00317.20
8.1.60.0040.00417.44
8.1.50.0030.00617.43
8.1.40.0060.00317.41
8.1.30.0030.00617.54
8.1.20.0050.00317.37
8.1.10.0050.00317.44
8.1.00.0000.00717.21
8.0.230.0000.00716.70
8.0.220.0040.00416.78
8.0.210.0030.00316.74
8.0.200.0070.00016.75
8.0.190.0000.00716.86
8.0.180.0000.00716.73
8.0.170.0050.00316.79
8.0.160.0000.01016.62
8.0.150.0030.00416.57
8.0.140.0080.00016.72
8.0.130.0030.00313.14
8.0.120.0000.00916.77
8.0.110.0040.00416.73
8.0.100.0000.00716.68
8.0.90.0030.00516.56
8.0.80.0050.01116.77
8.0.70.0000.00816.78
8.0.60.0050.00216.77
8.0.50.0000.00816.65
8.0.30.0150.00916.82
8.0.20.0120.00817.02
8.0.10.0040.00416.74
8.0.00.0070.01016.55
7.4.300.0030.00316.37
7.4.290.0000.00716.37
7.4.280.0050.00316.20
7.4.270.0000.00716.40
7.4.260.0030.00313.18
7.4.250.0000.00716.29
7.4.240.0060.00116.36
7.4.230.0000.00716.30
7.4.220.0050.00216.41
7.4.210.0070.01016.38
7.4.200.0040.00416.45
7.4.130.0070.01116.17
7.4.120.0090.00616.48
7.4.110.0090.00916.37
7.4.100.0100.00716.20
7.4.90.0150.00316.49
7.4.80.0130.01319.39
7.4.70.0070.01416.35
7.4.60.0130.00716.16
7.4.50.0110.00716.30
7.4.40.0030.01516.20
7.4.30.0110.00816.21
7.4.20.0070.01116.42
7.4.10.0090.01216.35
7.4.00.0110.00516.23
7.3.330.0000.00816.10
7.3.320.0000.00612.94
7.3.310.0000.00716.14
7.3.300.0030.00316.21
7.3.290.0110.00516.19
7.3.280.0070.00716.12
7.3.260.0060.01116.14
7.3.230.0130.01016.23
7.3.210.0150.00716.21
7.3.200.0120.00616.21
7.3.190.0100.00616.18
7.3.180.0030.01316.20
7.3.170.0070.01016.30
7.3.160.0130.00316.17
7.3.150.0110.00716.32
7.3.140.0150.00616.24
7.3.130.0070.01316.20
7.3.120.0130.00716.32
7.3.110.0140.00316.08
7.3.100.0070.01016.18
7.3.90.0030.01316.32
7.3.80.0130.00316.23
7.3.70.0130.00616.21
7.3.60.0130.00716.21
7.3.50.0160.00016.29
7.3.40.0030.01216.21
7.3.30.0110.00716.27
7.3.20.0290.00616.17
7.3.10.0070.01616.14
7.3.00.0140.00316.25
7.2.330.0130.01016.14
7.2.320.0120.00616.17
7.2.310.0090.00616.52
7.2.300.0120.00616.46
7.2.290.0030.01316.23
7.2.280.0090.00916.36
7.2.270.0110.00716.19
7.2.260.0100.00716.54
7.2.250.0090.00916.50
7.2.240.0090.00916.20
7.2.230.0120.00616.48
7.2.220.0060.01216.35
7.2.210.0090.00916.23
7.2.200.0100.01016.36
7.2.190.0070.01316.14
7.2.180.0000.01716.30
7.2.170.0110.01116.24
7.2.160.0160.00316.38
7.2.150.0090.00916.38
7.2.140.0100.00716.14
7.2.130.0260.00616.40
7.2.120.0110.00716.47
7.2.110.0060.01216.24
7.2.100.0060.01216.39
7.2.90.0090.00916.40
7.2.80.0060.01216.61
7.2.70.0090.00916.33
7.2.60.0090.00916.26
7.2.50.0090.00916.41
7.2.40.0070.01416.35
7.2.30.0060.01116.45
7.2.20.0080.00916.21
7.2.10.0120.00416.49
7.2.00.0040.01316.43

preferences:
54.21 ms | 406 KiB | 5 Q