3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = 'helloółe'; for ($i = 0, $count = mb_strlen($string); $i < $count; $i++) { echo $string[$i]; }

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)
8.3.70.0130.00318.18
8.3.60.0110.00818.18
8.3.50.0110.00417.95
8.3.40.0060.01218.84
8.3.30.0000.01418.63
8.3.20.0050.00321.77
8.3.10.0040.00423.54
8.3.00.0040.00421.64
8.2.190.0040.01518.54
8.2.180.0070.01418.29
8.2.170.0070.00722.96
8.2.160.0140.00020.11
8.2.150.0080.00024.18
8.2.140.0070.00024.66
8.2.130.0000.00826.16
8.2.120.0040.00419.81
8.2.110.0090.00019.27
8.2.100.0160.00017.78
8.2.90.0030.00519.34
8.2.80.0040.00417.97
8.2.70.0040.00417.92
8.2.60.0050.00318.03
8.2.50.0050.00518.10
8.2.40.0030.00619.23
8.2.30.0000.00819.17
8.2.20.0030.00519.95
8.2.10.0080.00020.72
8.2.00.0050.00319.35
8.1.280.0120.00925.92
8.1.270.0080.00018.95
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0070.00423.73
8.1.230.0110.00020.85
8.1.220.0040.00417.79
8.1.210.0000.00918.77
8.1.200.0040.00417.23
8.1.190.0040.00717.23
8.1.180.0070.00318.10
8.1.170.0000.00818.50
8.1.160.0050.00218.88
8.1.150.0040.00418.82
8.1.140.0040.00422.18
8.1.130.0000.01020.05
8.1.120.0050.00317.33
8.1.110.0040.00417.34
8.1.100.0000.00717.40
8.1.90.0000.00717.28
8.1.80.0050.00317.45
8.1.70.0000.00717.40
8.1.60.0060.00317.63
8.1.50.0000.00717.47
8.1.40.0050.00317.50
8.1.30.0060.00317.63
8.1.20.0070.00017.54
8.1.10.0030.00617.64
8.1.00.0080.00017.57
8.0.300.0050.00318.77
8.0.290.0040.00416.75
8.0.280.0000.00818.46
8.0.270.0000.00717.27
8.0.260.0070.00018.51
8.0.250.0000.00717.02
8.0.240.0030.00517.01
8.0.230.0040.00417.00
8.0.220.0070.00016.92
8.0.210.0000.00816.78
8.0.200.0070.00016.98
8.0.190.0080.00016.83
8.0.180.0030.00316.96
8.0.170.0030.00616.83
8.0.160.0020.00516.86
8.0.150.0030.00316.90
8.0.140.0090.00016.82
8.0.130.0030.00613.26
8.0.120.0040.00416.81
8.0.110.0040.00416.78
8.0.100.0030.00516.84
8.0.90.0000.00816.92
8.0.80.0100.00416.87
8.0.70.0050.00216.83
8.0.60.0040.00416.95
8.0.50.0000.00716.96
8.0.30.0130.00417.20
8.0.20.0070.01117.40
8.0.10.0000.00716.83
8.0.00.0160.00616.79
7.4.330.0050.00015.55
7.4.320.0030.00316.54
7.4.300.0030.00316.34
7.4.290.0000.00716.42
7.4.280.0040.00416.43
7.4.270.0000.00716.51
7.4.260.0070.00016.43
7.4.250.0000.00716.45
7.4.240.0040.00416.40
7.4.230.0000.00716.57
7.4.220.0040.00416.27
7.4.210.0060.01116.56
7.4.200.0040.00416.61
7.4.160.0130.00516.47
7.4.140.0110.00917.86
7.4.130.0090.00916.48
7.4.120.0120.00416.45
7.4.110.0140.00316.55
7.4.100.0090.00916.49
7.4.90.0110.00616.39
7.4.80.0060.01619.39
7.4.70.0070.01016.40
7.4.60.0000.01816.45
7.4.50.0110.00416.52
7.4.40.0150.00816.45
7.4.00.0030.01014.91
7.3.330.0030.00313.09
7.3.320.0030.00312.98
7.3.310.0040.00416.19
7.3.300.0070.00016.30
7.3.290.0070.00016.06
7.3.280.0050.01416.29
7.3.260.0080.00916.54
7.3.240.0110.00916.44
7.3.230.0030.01416.37
7.3.210.0080.00816.40
7.3.200.0100.00616.17
7.3.190.0100.00716.36
7.3.180.0120.00916.29
7.3.170.0110.01116.46
7.3.160.0140.00616.32
7.3.10.0060.00616.68
7.3.00.0990.00815.21
7.2.330.0160.00616.73
7.2.320.0110.00716.61
7.2.310.0040.01216.75
7.2.300.0140.00316.64
7.2.290.0100.01016.86
7.2.130.1040.00515.75
7.2.120.0690.00915.86
7.2.110.1270.00715.96
7.2.100.0630.00715.90
7.2.90.0840.00615.88
7.2.80.0750.00615.68
7.2.70.0650.00916.16
7.2.60.0600.01216.11
7.2.50.0810.00315.98
7.2.40.0710.00716.02
7.2.30.0680.00715.93
7.2.20.1020.00816.07
7.2.10.0720.00515.86
7.2.00.0750.00815.96
7.1.250.0820.00814.75
7.0.330.1640.00713.38
5.6.380.0070.00714.60

preferences:
19.71 ms | 401 KiB | 5 Q