3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str="hello"; for ($i = 0; strlen($str{$i}); $i++) { echo strlen($str{$i}) . "\n"; }

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)
8.3.60.0180.00016.46
8.3.50.0140.00316.23
8.3.40.0140.00418.77
8.3.30.0130.00718.42
8.3.20.0000.00818.61
8.3.10.0050.00321.73
8.3.00.0040.00421.77
8.2.180.0090.00616.35
8.2.170.0120.00322.96
8.2.160.0140.00022.08
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0000.00719.64
8.2.120.0040.00426.35
8.2.110.0030.00622.25
8.2.100.0080.00417.72
8.2.90.0060.00317.72
8.2.80.0040.00417.97
8.2.70.0000.00817.38
8.2.60.0050.00317.80
8.2.50.0040.00418.10
8.2.40.0040.00420.60
8.2.30.0040.00419.10
8.2.20.0000.00717.98
8.2.10.0050.00217.91
8.2.00.0040.00417.42
8.1.280.0100.00725.92
8.1.270.0080.00022.06
8.1.260.0020.00528.09
8.1.250.0040.00428.09
8.1.240.0050.00522.34
8.1.230.0080.00420.79
8.1.220.0040.00417.74
8.1.210.0040.00418.85
8.1.200.0040.00417.21
8.1.190.0000.00916.97
8.1.180.0040.00418.10
8.1.170.0080.00018.50
8.1.160.0000.00722.09
8.1.150.0040.00420.16
8.1.140.0040.00419.35
8.1.130.0070.00017.59
8.1.120.0050.00217.21
8.1.110.0000.00717.20
8.1.100.0000.00717.20
8.1.90.0040.00417.16
8.1.80.0000.00817.23
8.1.70.0000.00717.35
8.1.60.0040.00417.46
8.1.50.0000.00717.26
8.1.40.0030.00517.43
8.1.30.0040.00417.37
8.1.20.0070.00017.44
8.1.10.0030.00617.39
8.1.00.0050.00217.29
8.0.300.0030.00619.73
8.0.290.0070.00016.63
8.0.280.0000.00718.36
8.0.270.0000.00716.99
8.0.260.0000.00617.04
8.0.250.0000.00716.88
8.0.240.0040.00416.91
8.0.230.0070.00016.79
8.0.220.0030.00316.77
8.0.210.0070.00016.78
8.0.200.0070.00016.85
8.0.190.0060.00616.85
8.0.180.0000.00816.87
8.0.170.0000.00716.79
8.0.160.0000.00816.80
8.0.150.0000.00716.71
8.0.140.0000.00716.73
8.0.130.0000.00613.28
8.0.120.0080.00016.77
8.0.110.0000.00716.71
8.0.100.0070.00016.68
8.0.90.0030.00516.80
8.0.80.0090.00916.72
8.0.70.0070.00016.66
8.0.60.0040.00416.81
8.0.50.0040.00416.84
8.0.30.0080.00816.99
8.0.20.0130.00917.40
8.0.10.0050.00217.00
8.0.00.0130.01316.47
7.4.330.0050.00015.55
7.4.320.0060.00016.57
7.4.300.0000.00616.54
7.4.290.0040.00416.33
7.4.280.0060.00316.43
7.4.270.0070.00016.50
7.4.260.0100.00016.51
7.4.250.0030.00616.39
7.4.240.0080.00016.39
7.4.230.0020.00516.51
7.4.220.0060.01016.45
7.4.210.0090.00616.63
7.4.200.0040.00316.34
7.4.160.0150.00816.46
7.4.150.0070.01017.40
7.4.140.0110.00617.86
7.4.130.0110.00516.49
7.4.120.0110.00716.48
7.4.110.0190.00316.48
7.4.100.0150.00716.61
7.4.90.0150.00316.44
7.4.80.0060.01019.39
7.4.70.0140.00816.39
7.4.60.0090.00616.53
7.4.50.0070.01116.42
7.4.40.0140.00716.63
7.4.30.0070.01416.42
7.4.10.0120.00614.70
7.4.00.0070.01214.84
7.3.330.0030.00213.16
7.3.320.0020.00213.10
7.3.310.0000.00716.35
7.3.300.0070.00016.17
7.3.290.0050.01116.27
7.3.280.0090.00916.26
7.3.270.0120.01217.40
7.3.260.0120.01016.40
7.3.250.0100.00816.45
7.3.240.0110.01016.30
7.3.230.0030.01516.48
7.3.210.0130.00916.32
7.3.200.0080.00816.22
7.3.190.0080.00816.52
7.3.180.0060.00916.31
7.3.170.0160.00616.46
7.3.160.0100.00716.30
7.3.130.0100.01014.86
7.3.120.0070.01114.52
7.3.110.0060.00914.67
7.3.100.0060.01014.82
7.3.90.0120.00414.59
7.3.80.0060.00614.63
7.3.70.0040.00714.61
7.3.60.0040.00814.86
7.3.50.0070.00714.90
7.3.40.0070.00314.63
7.3.30.0030.01014.47
7.3.20.0130.00316.47
7.3.10.0030.01216.68
7.3.00.0000.00816.59
7.2.330.0130.00616.75
7.2.320.0030.01316.35
7.2.310.0300.01916.56
7.2.300.0130.00916.59
7.2.290.0110.01216.40
7.2.260.0000.01714.99
7.2.250.0030.01014.95
7.2.240.0110.00315.19
7.2.230.0040.01115.18
7.2.220.0030.01314.98
7.2.210.0060.00615.11
7.2.200.0060.00915.11
7.2.190.0090.00915.15
7.2.180.0040.01115.17
7.2.170.0040.00715.08
7.2.160.0040.00814.95
7.2.150.0140.00017.05
7.2.140.0110.00416.75
7.2.130.0090.00316.63
7.2.120.0070.00717.05
7.2.110.0040.01016.59
7.2.100.0030.00716.89
7.2.90.0060.00916.97
7.2.80.0140.00016.97
7.2.70.0040.00817.04
7.2.60.0180.01116.99
7.2.50.0030.01116.94
7.2.40.0030.01416.96
7.2.30.0070.00716.89
7.2.20.0030.01016.95
7.2.10.0030.01017.10
7.2.00.0010.01218.12
7.1.330.0070.00715.67
7.1.320.0070.00415.89
7.1.310.0040.01115.92
7.1.300.0070.00715.88
7.1.290.0030.01015.89
7.1.280.0000.00815.82
7.1.270.0070.01015.82
7.1.260.0060.00315.80
7.1.250.0060.00615.80
7.1.240.0040.00715.87
7.1.230.0000.01715.93
7.1.220.0030.00615.91
7.1.210.0090.00615.90
7.1.200.0030.00715.69
7.1.190.0040.00715.61
7.1.180.0090.00315.99
7.1.170.0060.00615.72
7.1.160.0090.00615.76
7.1.150.0060.00915.61
7.1.140.0030.01015.76
7.1.130.0070.00715.75
7.1.120.0040.01115.84
7.1.110.0080.00316.03
7.1.100.0060.00915.89
7.1.90.0060.01015.85
7.1.80.0030.01015.84
7.1.70.0040.00816.39
7.1.60.0120.00716.47
7.1.50.0060.00615.88
7.1.40.0080.00016.01
7.1.30.0050.00815.75
7.1.20.0070.00715.43
7.1.10.0040.00715.86
7.1.00.0120.03419.13
7.0.330.0060.00615.39
7.0.320.0050.00215.06
7.0.310.0030.00715.20
7.0.300.0030.01315.36
7.0.290.0070.00715.28
7.0.280.0000.00815.47
7.0.270.0060.00615.28
7.0.260.0080.00415.39
7.0.250.0090.00615.13
7.0.240.0070.00715.26
7.0.230.0000.01515.48
7.0.220.0060.01015.41
7.0.210.0050.00515.59
7.0.200.0030.00616.10
7.0.190.0030.01015.52
7.0.180.0050.00315.36
7.0.170.0030.00615.52
7.0.160.0040.01115.32
7.0.150.0040.01115.52
7.0.140.0130.00015.50
7.0.130.0100.00315.60
7.0.120.0110.03818.87
7.0.110.0050.04218.73
7.0.100.0070.03218.63
7.0.90.0080.04218.80
7.0.80.0090.03318.83
7.0.70.0080.04218.74
7.0.60.0100.03618.64
7.0.50.0070.03818.85
7.0.40.0080.03217.68
7.0.30.0030.03617.81
7.0.20.0090.02717.82
7.0.10.0110.02717.62
7.0.00.0050.03217.83
5.6.400.0000.00914.31
5.6.390.0030.00914.60
5.6.380.0030.00614.39
5.6.370.0030.00714.39
5.6.360.0090.00014.49
5.6.350.0060.01014.75
5.6.340.0000.01514.32
5.6.330.0000.00814.67
5.6.320.0070.01114.56
5.6.310.0000.00814.65
5.6.300.0060.00614.20
5.6.290.0070.00414.51
5.6.280.0060.00314.41
5.6.270.0100.03217.64
5.6.260.0070.04217.75
5.6.250.0050.03917.55
5.6.240.0140.03617.86
5.6.230.0110.03517.72
5.6.220.0100.03717.58
5.6.210.0100.03717.51
5.6.200.0090.03417.76
5.6.190.0100.03317.52
5.6.180.0070.03717.57
5.6.170.0070.03517.46
5.6.160.0020.03617.64
5.6.150.0000.03617.59
5.6.140.0080.03517.51
5.6.130.0070.03317.75
5.6.120.0070.03317.63
5.6.110.0030.03617.54
5.6.100.0070.04017.59
5.6.90.0090.03417.67
5.6.80.0080.03217.32
5.6.70.0120.02917.31
5.6.60.0070.03817.14
5.6.50.0100.03217.33
5.6.40.0030.03517.08
5.6.30.0080.04117.38
5.6.20.0030.03517.23
5.6.10.0020.04617.22
5.6.00.0020.03817.36

preferences:
64.07 ms | 401 KiB | 5 Q