3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo substr("Hello world",10); echo “\n”; echo substr("Hello world",2); echo “\n”; echo substr("Hello world",3); echo “\n”; echo substr("Hello world",7); ?>

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)
8.3.60.0070.00716.63
8.3.50.0070.01116.44
8.3.40.0070.00718.84
8.3.30.0090.00618.77
8.3.20.0050.00220.21
8.3.10.0040.00423.52
8.3.00.0000.00721.77
8.2.180.0070.01016.38
8.2.170.0140.00022.96
8.2.160.0030.01020.35
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0040.00421.13
8.2.120.0080.00026.35
8.2.110.0060.00321.12
8.2.100.0070.00417.92
8.2.90.0030.00519.23
8.2.80.0090.00017.97
8.2.70.0050.00517.75
8.2.60.0040.00417.93
8.2.50.0000.00818.09
8.2.40.0040.00422.18
8.2.30.0040.00419.41
8.2.20.0080.00019.52
8.2.10.0000.00718.10
8.2.00.0000.00818.00
8.1.280.0140.00725.92
8.1.270.0040.01122.23
8.1.260.0040.00428.09
8.1.250.0040.00428.09
8.1.240.0100.00022.49
8.1.230.0030.00719.15
8.1.220.0080.00017.79
8.1.210.0090.00018.77
8.1.200.0060.00317.22
8.1.190.0080.00017.35
8.1.180.0100.00018.10
8.1.170.0040.00418.64
8.1.160.0040.00420.69
8.1.150.0060.00320.61
8.1.140.0040.00419.50
8.1.130.0000.00817.61
8.1.120.0070.00017.46
8.1.110.0000.00717.36
8.1.100.0070.00017.29
8.1.90.0000.00717.39
8.1.80.0050.00517.38
8.1.70.0000.00717.29
8.1.60.0000.00717.53
8.1.50.0060.00317.40
8.1.40.0000.00817.39
8.1.30.0040.00417.51
8.1.20.0030.00517.58
8.1.10.0040.00417.41
8.1.00.0040.00417.40
8.0.300.0070.00018.77
8.0.290.0050.00316.75
8.0.280.0000.00718.34
8.0.270.0030.00317.24
8.0.260.0030.00317.27
8.0.250.0040.00417.02
8.0.240.0070.00016.98
8.0.230.0070.00017.01
8.0.220.0040.00816.89
8.0.210.0050.00316.83
8.0.200.0030.00317.01
8.0.190.0040.00416.87
8.0.180.0030.00516.86
8.0.170.0040.00417.01
8.0.160.0040.00417.04
8.0.150.0000.00717.01
8.0.140.0030.00316.82
8.0.130.0030.00313.42
8.0.120.0030.00516.77
8.0.110.0050.00316.93
8.0.100.0000.00716.91
8.0.90.0040.00416.78
8.0.80.0100.00717.00
8.0.70.0000.00716.94
8.0.60.0040.00416.91
8.0.50.0040.00416.91
8.0.30.0080.01217.07
8.0.20.0070.01217.40
8.0.10.0050.00316.89
8.0.00.0080.01016.73
7.4.330.0000.00616.66
7.4.320.0060.00016.45
7.4.300.0000.00716.57
7.4.290.0000.00716.42
7.4.280.0040.00416.40
7.4.270.0000.00716.57
7.4.260.0070.00316.36
7.4.250.0000.00816.48
7.4.240.0050.00216.43
7.4.230.0030.00316.32
7.4.220.0030.01416.46
7.4.210.0060.01016.48
7.4.200.0040.00416.41
7.4.160.0090.00616.60
7.4.150.0110.01117.40
7.4.140.0120.00817.86
7.4.130.0130.00816.51
7.4.120.0110.00716.47
7.4.110.0090.00916.49
7.4.100.0150.00316.52
7.4.90.0090.00916.45
7.4.80.0060.01319.39
7.4.70.0050.01416.58
7.4.60.0100.00616.35
7.4.50.0160.00316.30
7.4.40.0160.00716.27
7.4.30.0100.01016.64
7.4.10.0030.01514.97
7.4.00.0070.00814.94
7.3.330.0000.00512.95
7.3.320.0030.00313.09
7.3.310.0030.00316.08
7.3.300.0030.00316.25
7.3.290.0100.00516.26
7.3.280.0050.00916.25
7.3.270.0060.01017.40
7.3.260.0110.00716.34
7.3.250.0060.01316.37
7.3.240.0080.00916.21
7.3.230.0060.00916.39
7.3.210.0110.00616.36
7.3.200.0170.00619.39
7.3.190.0110.00816.35
7.3.180.0090.01016.52
7.3.170.0030.01816.31
7.3.160.0170.00016.31
7.3.130.0050.00614.91
7.3.120.0090.00814.78
7.3.110.0100.00614.74
7.3.100.0040.01114.83
7.3.90.0110.00514.82
7.3.80.0060.00514.73
7.3.70.0090.00514.69
7.3.60.0030.00914.59
7.3.50.0030.01014.62
7.3.40.0070.00714.79
7.3.30.0080.00614.71
7.3.20.0050.00716.73
7.3.10.0050.00916.56
7.3.00.0030.00916.42
7.2.330.0100.00716.22
7.2.320.0110.00716.50
7.2.310.0100.01116.68
7.2.300.0090.01416.68
7.2.290.0100.00716.57
7.2.260.0090.01014.79
7.2.250.0140.00214.95
7.2.240.0100.00515.02
7.2.230.0060.00714.90
7.2.220.0070.00315.06
7.2.210.0080.00514.84
7.2.200.0060.00614.78
7.2.190.0030.01114.78
7.2.180.0060.00614.83
7.2.170.0110.00514.89
7.2.160.0050.00514.72
7.2.150.0050.01116.81
7.2.140.0080.00816.86
7.2.130.0070.00816.83
7.2.120.0030.01216.77
7.2.110.0060.00516.77
7.2.100.0030.00916.75
7.2.90.0070.00816.81
7.2.80.0070.01016.81
7.2.70.0060.00716.79
7.2.60.0060.00716.85
7.2.50.0090.00416.77
7.2.40.0060.00816.84
7.2.30.0030.00916.83
7.2.20.0060.00616.87
7.2.10.0080.00616.75
7.2.00.0040.00917.46
7.1.330.0070.00715.59
7.1.320.0080.00415.79
7.1.310.0050.00715.69
7.1.300.0050.00915.60
7.1.290.0070.00715.56
7.1.280.0040.01115.74
7.1.270.0050.00715.55
7.1.260.0080.00815.62
7.1.250.0050.00715.71
7.1.240.0060.00615.62
7.1.230.0070.00615.65
7.1.220.0120.00315.54
7.1.210.0030.01215.52
7.1.200.0090.00515.49
7.1.190.0060.00915.63
7.1.180.0050.00815.56
7.1.170.0030.01015.48
7.1.160.0060.00515.66
7.1.150.0060.00615.72
7.1.140.0030.00915.73
7.1.130.0040.00515.71
7.1.120.0040.00715.61
7.1.110.0020.00815.60
7.1.100.0060.00716.38
7.1.90.0070.00715.78
7.1.80.0030.01115.73
7.1.70.0050.00616.05
7.1.60.0070.01116.98
7.1.50.0070.00616.14
7.1.40.0060.00815.51
7.1.30.0030.01015.71
7.1.20.0020.00915.57
7.1.10.0030.00615.70
7.1.00.0060.02918.00
7.0.330.0030.00715.13
7.0.320.0090.00215.13
7.0.310.0050.00815.32
7.0.300.0030.00815.32
7.0.290.0030.00815.19
7.0.280.0030.01115.11
7.0.270.0060.00615.32
7.0.260.0040.00815.36
7.0.250.0050.00615.34
7.0.240.0090.00315.30
7.0.230.0060.00715.16
7.0.220.0080.00615.22
7.0.210.0060.00915.11
7.0.200.0470.00614.75
7.0.190.0090.00315.29
7.0.180.0110.00415.18
7.0.170.0090.00615.37
7.0.160.0050.00515.08
7.0.150.0030.01215.42
7.0.140.0040.01015.28
7.0.130.0070.00715.31
7.0.120.0030.01015.22
7.0.110.0040.00815.18
7.0.100.0050.01015.24
7.0.90.0050.00715.39
7.0.80.0030.00715.29
7.0.70.0050.00815.30
7.0.60.0120.03117.30
7.0.50.0070.03016.09
7.0.40.0060.03115.70
7.0.30.0180.02615.63
7.0.20.0090.01915.65
7.0.10.0060.03015.71
7.0.00.0100.02715.49
5.6.400.0060.00713.92
5.6.390.0000.01114.31
5.6.380.0050.00813.99
5.6.370.0050.00714.28
5.6.360.0060.00614.14
5.6.350.0070.00514.15
5.6.340.0020.01213.84
5.6.330.0020.00613.96
5.6.320.0100.00513.93
5.6.310.0110.00314.41
5.6.300.0080.00614.15
5.6.290.0040.00714.18
5.6.280.0050.01616.60
5.6.270.0110.00514.22
5.6.260.0050.00914.24
5.6.250.0030.01214.10
5.6.240.0090.00414.07
5.6.230.0060.00614.31
5.6.220.0070.00814.22
5.6.210.0080.03216.30
5.6.200.0080.02815.50
5.6.190.0070.01816.45
5.6.180.0140.02916.22
5.6.170.0190.02816.08
5.6.160.0060.03716.18
5.6.150.0090.01615.45
5.6.140.0060.03115.43
5.6.130.0070.02915.39
5.6.120.0060.02116.34
5.6.110.0060.02816.44
5.6.100.0070.02916.45
5.6.90.0060.03116.43
5.6.80.0020.03016.09
5.6.70.0050.01013.98
5.6.60.0080.00813.95
5.6.50.0020.01513.96
5.6.40.0110.00314.11
5.6.30.0070.00914.08
5.6.20.0030.01014.00
5.6.10.0070.00713.98
5.6.00.0080.00313.99
5.5.380.0050.00714.08
5.5.370.0060.00613.90
5.5.360.0030.00713.80
5.5.350.0110.02916.23
5.5.340.0060.02615.47
5.5.330.0100.02116.22
5.5.320.0100.03216.25
5.5.310.0080.02116.21
5.5.300.0030.02015.36
5.5.290.0050.03315.32
5.5.280.0070.02016.33
5.5.270.0080.03116.18
5.5.260.0070.03116.41
5.5.250.0070.02216.20
5.5.240.0160.02816.08
5.5.230.0070.00814.13
5.5.220.0020.01513.96
5.5.210.0060.00613.86
5.5.200.0070.00814.00
5.5.190.0070.00913.97
5.5.180.0050.01014.09
5.5.170.0060.00814.08
5.5.160.0080.00514.19
5.5.150.0050.01013.89
5.5.140.0070.00614.04
5.5.130.0070.00514.08
5.5.120.0060.00813.73
5.5.110.0090.00714.08
5.5.100.0120.00514.10
5.5.90.0120.00113.76
5.5.80.0090.00914.31
5.5.70.0110.00514.12
5.5.60.0070.00713.84
5.5.50.0040.00813.78
5.5.40.0050.01013.84
5.5.30.0050.00813.98
5.5.20.0090.00313.96
5.5.10.0090.00413.99
5.5.00.0070.00514.00

preferences:
51.87 ms | 401 KiB | 5 Q