3v4l.org

run code in 300+ PHP versions simultaneously
<?php class IterateOver { static function string($str) { for ($i = 0, $len = mb_strlen($str); $i < $len; ++$i) { yield mb_substr($str, $i, 1); } } } foreach (IterateOver::string("meh") as $char) { var_dump($char); } var_dump(IterateOver::string("meh"));

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)
8.3.60.0120.00418.56
8.3.50.0090.00616.59
8.3.40.0110.00418.50
8.3.30.0170.00018.51
8.3.20.0040.00419.16
8.3.10.0050.00323.65
8.3.00.0040.00423.65
8.2.180.0100.01016.63
8.2.170.0070.00722.96
8.2.160.0100.00318.92
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00420.52
8.2.120.0000.00726.35
8.2.110.0090.00020.43
8.2.100.0090.00317.72
8.2.90.0060.00317.75
8.2.80.0090.00017.97
8.2.70.0030.00618.03
8.2.60.0040.00418.03
8.2.50.0040.00418.10
8.2.40.0000.00719.48
8.2.30.0040.00419.20
8.2.20.0070.00018.04
8.2.10.0000.00819.43
8.2.00.0030.00319.44
8.1.280.0120.00325.92
8.1.270.0050.00322.23
8.1.260.0090.00026.35
8.1.250.0030.00528.09
8.1.240.0040.00423.86
8.1.230.0090.00323.85
8.1.220.0080.00018.77
8.1.210.0080.00018.97
8.1.200.0090.00017.35
8.1.190.0060.00317.23
8.1.180.0020.00518.10
8.1.170.0000.00818.84
8.1.160.0040.00418.89
8.1.150.0050.00218.76
8.1.140.0030.00619.68
8.1.130.0000.00618.97
8.1.120.0000.00717.45
8.1.110.0040.00417.37
8.1.100.0000.00717.36
8.1.90.0040.00417.34
8.1.80.0030.00717.50
8.1.70.0000.00817.47
8.1.60.0050.00517.67
8.1.50.0000.00817.55
8.1.40.0070.00017.50
8.1.30.0000.01117.72
8.1.20.0000.00817.60
8.1.10.0030.00617.69
8.1.00.0040.00417.54
8.0.300.0030.00519.98
8.0.290.0050.00316.75
8.0.280.0070.00018.41
8.0.270.0000.00717.38
8.0.260.0000.00617.31
8.0.250.0070.00017.00
8.0.240.0000.00716.91
8.0.230.0030.00716.93
8.0.220.0000.00816.96
8.0.210.0070.00016.95
8.0.200.0000.00716.88
8.0.190.0000.00816.90
8.0.180.0030.00516.95
8.0.170.0000.00916.80
8.0.160.0000.00816.95
8.0.150.0000.00716.91
8.0.140.0050.00316.80
8.0.130.0050.00013.41
8.0.120.0000.00716.88
8.0.110.0040.00417.00
8.0.100.0000.00716.86
8.0.90.0000.00716.90
8.0.80.0100.00716.98
8.0.70.0040.00417.01
8.0.60.0040.00416.79
8.0.50.0020.00516.83
8.0.30.0090.00817.09
8.0.20.0140.00517.40
8.0.10.0030.00516.93
8.0.00.0080.01016.82
7.4.330.0040.00015.55
7.4.320.0100.00016.61
7.4.300.0000.00616.51
7.4.290.0030.00616.49
7.4.280.0000.00816.39
7.4.270.0000.00716.61
7.4.260.0070.00016.56
7.4.250.0040.00416.51
7.4.240.0030.00316.50
7.4.230.0030.00316.71
7.4.220.0030.00516.55
7.4.210.0100.00916.48
7.4.200.0030.00316.70
7.4.160.0130.00416.57
7.4.140.0110.00717.86
7.4.130.0130.00416.32
7.4.120.0130.00716.52
7.4.110.0160.00016.47
7.4.100.0070.01516.59
7.4.90.0030.02016.43
7.4.80.0090.00919.39
7.4.70.0100.01016.51
7.4.60.0130.00316.34
7.4.50.0110.00716.35
7.4.40.0100.01316.54
7.4.00.0070.00814.88
7.3.330.0000.00513.14
7.3.320.0000.00613.17
7.3.310.0040.00416.13
7.3.300.0040.00416.27
7.3.290.0000.00716.16
7.3.280.0090.00616.38
7.3.260.0090.00816.45
7.3.240.0110.00916.37
7.3.230.0140.00316.45
7.3.210.0140.00516.49
7.3.200.0120.00316.60
7.3.190.0150.00716.30
7.3.180.0030.01316.59
7.3.170.0100.00516.64
7.3.160.0110.00816.40
7.3.120.0070.01114.77
7.3.110.0090.00814.96
7.3.100.0020.01114.82
7.3.90.0080.01014.71
7.3.80.0060.01115.01
7.3.70.0080.00814.75
7.3.60.0050.00715.05
7.3.50.0060.00814.90
7.3.40.0060.00714.88
7.3.30.0030.01014.75
7.3.20.0030.01016.59
7.3.10.0070.00616.70
7.3.00.0050.00916.68
7.2.330.0150.00616.87
7.2.320.0140.01116.49
7.2.310.0110.01116.75
7.2.300.0090.00916.71
7.2.290.0120.00616.73
7.2.250.0070.00915.17
7.2.240.0120.00815.24
7.2.230.0080.01115.04
7.2.220.0030.01015.06
7.2.210.0100.00515.23
7.2.200.0060.00514.92
7.2.190.0050.01115.10
7.2.180.0050.01115.14
7.2.170.0030.00815.08
7.2.80.0220.00314.84
7.2.70.0240.00314.69
7.2.60.0140.01115.01
7.2.50.0170.00915.15
7.2.40.0160.00814.84
7.2.30.0320.00715.10
7.2.20.0130.01015.26
7.2.10.0310.00715.05
7.2.00.0190.00614.91
7.1.330.0080.00715.98
7.1.320.0080.00715.83
7.1.310.0080.00915.69
7.1.300.0050.01115.91
7.1.290.0040.01315.59
7.1.280.0070.00615.79
7.1.270.0050.00815.86
7.1.260.0000.01615.89
7.1.200.0050.00515.64
7.1.190.0190.00613.80
7.1.180.0150.00914.00
7.1.170.0090.01513.98
7.1.160.0190.00313.99
7.1.150.0160.00613.58
7.1.140.1110.01013.94
7.1.130.0160.00913.75
7.1.120.0200.00313.85
7.1.110.0160.00713.78
7.1.100.0170.00713.82
7.1.90.0160.00913.84
7.1.80.0200.00713.73
7.1.70.0160.01013.89
7.1.60.0380.00631.80
7.1.50.0330.01331.95
7.1.40.0370.00931.76
7.1.30.0360.01031.98
7.1.20.0390.00331.84
7.1.10.0180.00713.77
7.1.00.0240.00013.94

preferences:
57.8 ms | 400 KiB | 5 Q