3v4l.org

run code in 300+ PHP versions simultaneously
<?php for ($i = 0; $i < 100000; $i++) { if (function_exists('mb_substr')) { } }

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)
8.3.60.0000.01918.41
8.3.50.0130.01316.26
8.3.40.0060.01618.67
8.3.30.0100.00718.37
8.3.20.0090.00018.86
8.3.10.0030.00621.77
8.3.00.0030.00719.30
8.2.180.0070.01016.62
8.2.170.0110.01122.96
8.2.160.0070.01020.52
8.2.150.0060.00324.18
8.2.140.0000.01024.66
8.2.130.0030.00620.52
8.2.120.0040.00426.35
8.2.110.0060.00620.11
8.2.100.0090.00317.66
8.2.90.0000.01119.18
8.2.80.0000.01017.97
8.2.70.0070.00317.50
8.2.60.0070.00317.80
8.2.50.0040.00718.10
8.2.40.0060.00622.27
8.2.30.0050.00521.02
8.2.20.0080.00417.86
8.2.10.0000.01018.03
8.2.00.0030.00717.98
8.1.280.0100.01025.92
8.1.270.0030.00623.84
8.1.260.0030.00626.35
8.1.250.0060.00328.09
8.1.240.0040.00822.14
8.1.230.0110.00419.23
8.1.220.0100.00017.74
8.1.210.0070.00318.77
8.1.200.0040.00717.23
8.1.190.0040.00817.22
8.1.180.0030.00618.10
8.1.170.0000.01118.46
8.1.160.0060.00319.00
8.1.150.0000.01020.52
8.1.140.0000.01219.41
8.1.130.0030.00618.73
8.1.120.0000.00917.29
8.1.110.0050.00517.37
8.1.100.0000.00917.37
8.1.90.0040.00817.29
8.1.80.0000.01017.36
8.1.70.0030.00617.42
8.1.60.0000.01017.43
8.1.50.0030.00717.41
8.1.40.0070.00317.41
8.1.30.0040.00817.63
8.1.20.0110.00717.42
8.1.10.0030.00617.35
8.1.00.0000.01117.38
8.0.300.0000.01018.77
8.0.290.0050.00516.75
8.0.280.0030.00618.36
8.0.270.0040.00417.06
8.0.260.0000.00916.75
8.0.250.0000.00916.77
8.0.240.0050.00516.91
8.0.230.0030.00616.89
8.0.220.0030.00616.78
8.0.210.0030.00616.75
8.0.200.0030.00716.80
8.0.190.0000.01116.81
8.0.180.0030.00716.85
8.0.170.0030.00616.84
8.0.160.0030.00616.76
8.0.150.0000.01316.84
8.0.140.0030.00716.73
8.0.130.0030.00513.19
8.0.120.0030.00716.70
8.0.110.0030.00616.63
8.0.100.0000.01016.93
8.0.90.0000.00916.84
8.0.80.0060.01316.78
8.0.70.0000.01016.71
8.0.60.0030.00616.87
8.0.50.0070.00316.80
8.0.30.0130.00817.00
8.0.20.0160.01417.40
8.0.10.0070.00316.81
8.0.00.0120.01216.45
7.4.330.0000.00915.55
7.4.320.0030.00616.54
7.4.300.0040.00416.30
7.4.290.0060.00916.52
7.4.280.0080.00416.52
7.4.270.0000.00916.37
7.4.260.0050.00313.23
7.4.250.0030.00716.42
7.4.240.0040.00716.43
7.4.230.0070.00316.64
7.4.220.0070.02016.62
7.4.210.0060.01316.47
7.4.200.0050.00516.51
7.4.160.0090.01116.57
7.4.150.0000.02017.40
7.4.140.0110.01717.86
7.4.130.0130.01016.24
7.4.120.0100.01516.38
7.4.110.0090.01216.58
7.4.100.0060.01816.36
7.4.90.0040.01816.23
7.4.80.0060.01819.39
7.4.70.0070.01316.41
7.4.60.0030.01716.45
7.4.50.0060.01216.21
7.4.40.0090.01216.35
7.4.30.0090.01216.46
7.4.00.0060.01214.87
7.3.330.0000.01013.13
7.3.320.0000.00813.17
7.3.310.0030.01016.20
7.3.300.0030.00716.13
7.3.290.0070.01116.25
7.3.280.0110.01216.25
7.3.270.0130.01317.40
7.3.260.0050.02416.27
7.3.250.0110.01416.33
7.3.240.0080.01316.29
7.3.230.0110.01816.29
7.3.210.0070.01316.59
7.3.200.0130.00616.39
7.3.190.0070.01316.56
7.3.180.0070.02216.60
7.3.170.0100.01016.21
7.3.160.0090.01216.71
7.3.120.0090.01314.98
7.3.110.0070.01714.70
7.3.100.0040.01514.68
7.3.90.0090.01214.60
7.3.80.0000.02114.94
7.3.70.0000.01514.73
7.3.60.0090.00914.84
7.3.50.0070.01114.53
7.3.40.0000.01314.88
7.3.30.0030.01214.91
7.3.20.0100.01016.74
7.3.10.0070.01116.66
7.3.00.0050.01316.66
7.2.330.0090.01316.68
7.2.320.0100.01716.55
7.2.310.0000.02116.35
7.2.300.0060.01716.45
7.2.290.0060.01516.48
7.2.250.0070.01815.18
7.2.240.0070.02015.08
7.2.230.0040.01515.09
7.2.220.0070.01415.04
7.2.210.0040.01414.64
7.2.200.0080.00815.04
7.2.190.0100.00715.12
7.2.180.0060.01315.13
7.2.170.0070.01015.08
7.2.130.0090.00916.83
7.2.120.0000.01816.52
7.2.110.0120.00616.90
7.2.100.0060.00916.82
7.2.90.0060.01016.91
7.2.80.0060.00616.85
7.2.70.0070.00716.68
7.2.60.0050.01116.90
7.2.50.0040.01516.88
7.2.40.0060.00616.99
7.2.30.0030.01416.87
7.2.20.0070.01116.61
7.2.10.0060.01216.96
7.2.00.0040.01118.10
7.1.330.0130.01015.80
7.1.320.0060.01615.54
7.1.310.0040.01815.68
7.1.300.0030.02115.77
7.1.290.0070.01015.83
7.1.280.0040.01815.81
7.1.270.0000.02015.55
7.1.260.0070.01715.67
7.1.250.0040.01515.81
7.1.200.0030.01315.82
7.1.100.0040.01818.01
7.1.70.0040.00717.03
7.1.60.0630.02333.18
7.1.50.0700.02333.07
7.1.40.0700.01732.50
7.1.30.0700.03032.52
7.1.20.1070.02332.68
7.1.10.0730.01314.63
7.1.00.0770.02014.75
7.0.200.0900.02014.88
7.0.190.0600.02314.83
7.0.180.0770.01314.50
7.0.170.0870.01714.46
7.0.160.0570.01714.32
7.0.150.0900.01314.37
7.0.140.0400.01714.34
7.0.130.0800.01714.78
7.0.120.0730.02014.59
7.0.110.7630.01714.30
7.0.100.0570.02714.63
7.0.90.0870.02714.63
7.0.80.0570.02314.52
7.0.70.0670.02014.44
7.0.60.0600.01314.29
7.0.50.0730.02014.44
7.0.40.0670.02014.66
7.0.30.0730.01714.54
7.0.20.0730.01714.47
7.0.10.0670.02014.45
7.0.00.0600.02714.45

preferences:
33.68 ms | 401 KiB | 5 Q