3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = "<derp>"; $words = array(); $words[] &= $string; $string = substr($string, 1); $string = substr($string, 0, -1); var_dump($words);

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)
8.3.40.0040.01119.01
8.3.30.0070.00720.20
8.3.20.0030.00620.33
8.3.10.0000.00822.14
8.3.00.0030.00622.37
8.2.170.0090.00922.96
8.2.160.0110.00422.10
8.2.150.0080.00024.18
8.2.140.0060.00324.66
8.2.130.0000.00726.16
8.2.120.0080.00020.78
8.2.110.0130.00322.30
8.2.100.0040.00717.72
8.2.90.0050.00319.21
8.2.80.0040.00419.21
8.2.70.0000.00817.25
8.2.60.0060.00617.68
8.2.50.0000.00818.07
8.2.40.0000.00718.09
8.2.30.0000.00719.34
8.2.20.0040.00417.67
8.2.10.0040.00417.79
8.2.00.0080.00017.59
8.1.270.0000.00723.99
8.1.260.0000.00726.35
8.1.250.0000.00828.09
8.1.240.0090.00023.72
8.1.230.0040.00819.14
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0000.00917.53
8.1.180.0090.00019.01
8.1.170.0040.00418.59
8.1.160.0090.00020.61
8.1.150.0030.00618.61
8.1.140.0080.00017.39
8.1.130.0040.00417.84
8.1.120.0000.00817.41
8.1.110.0040.00417.39
8.1.100.0040.00417.41
8.1.90.0040.00417.45
8.1.80.0040.00317.30
8.1.70.0040.00417.36
8.1.60.0080.00017.51
8.1.50.0050.00217.48
8.1.40.0080.00017.41
8.1.30.0030.00517.63
8.1.20.0040.00417.62
8.1.10.0000.00817.55
8.1.00.0000.00917.49
8.0.300.0040.00418.77
8.0.290.0050.00317.18
8.0.280.0030.00518.27
8.0.270.0030.00317.24
8.0.260.0000.00716.75
8.0.250.0040.00417.02
8.0.240.0040.00416.91
8.0.230.0000.00717.02
8.0.220.0030.00516.88
8.0.210.0070.00016.91
8.0.200.0030.00316.88
8.0.190.0070.00016.97
8.0.180.0000.00716.95
8.0.170.0030.00416.87
8.0.160.0000.00716.77
8.0.150.0110.00016.77
8.0.140.0030.00516.89
8.0.130.0000.00613.30
8.0.120.0040.00416.77
8.0.110.0090.00016.80
8.0.100.0000.00716.91
8.0.90.0040.00416.94
8.0.80.0030.01316.87
8.0.70.0030.00516.81
8.0.60.0070.00016.75
8.0.50.0040.00416.68
8.0.30.0110.01017.02
8.0.20.0100.00817.40
8.0.10.0000.00716.99
8.0.00.0100.00916.44
7.4.330.0000.00515.00
7.4.320.0000.00616.38
7.4.300.0030.00316.34
7.4.290.0000.00716.37
7.4.280.0040.00416.45
7.4.270.0070.00016.52
7.4.260.0000.00513.13
7.4.250.0050.00316.50
7.4.240.0030.00516.44
7.4.230.0030.00316.54
7.4.220.0070.01316.40
7.4.210.0100.00816.48
7.4.200.0000.00716.51
7.4.190.0040.00416.40
7.4.160.0160.00016.60
7.4.150.0120.01217.40
7.4.140.0090.00917.86
7.4.130.0070.01016.38
7.4.120.0120.00716.49
7.4.110.0160.00616.27
7.4.100.0160.00616.51
7.4.90.0090.00916.43
7.4.80.0030.01319.39
7.4.70.0130.00316.37
7.4.60.0070.01016.37
7.4.50.0030.00616.33
7.4.40.0060.00922.77
7.4.30.0040.01316.53
7.4.10.0000.01514.96
7.4.00.0050.00914.93
7.3.330.0000.00512.95
7.3.320.0050.00313.00
7.3.310.0030.00316.23
7.3.300.0070.00016.26
7.3.290.0060.00916.22
7.3.280.0120.00816.27
7.3.270.0050.01417.40
7.3.260.0100.00716.41
7.3.250.0140.01016.33
7.3.240.0170.00016.19
7.3.230.0100.00716.39
7.3.210.0060.01116.43
7.3.200.0120.00919.39
7.3.190.0090.01216.45
7.3.180.0030.01316.49
7.3.170.0070.01016.29
7.3.160.0100.00616.35
7.3.130.0110.00714.81
7.3.120.0050.00814.86
7.3.110.0040.01514.90
7.3.100.0050.00514.67
7.3.90.0100.00314.56
7.3.80.0110.00314.46
7.3.70.0040.00414.36
7.3.60.0030.00914.38
7.3.50.0030.00714.44
7.3.40.0030.01114.67
7.3.30.0030.00614.69
7.3.20.0060.00616.29
7.3.10.0070.00716.23
7.3.00.0060.00516.56
7.2.330.0030.01416.21
7.2.320.0190.01416.64
7.2.310.0100.00716.71
7.2.300.0130.00716.63
7.2.290.0100.00716.55
7.2.260.0090.00914.80
7.2.250.0070.01114.98
7.2.240.0000.01414.84
7.2.230.0040.01014.75
7.2.220.0090.00615.13
7.2.210.0060.00914.57
7.2.200.0080.00815.07
7.2.190.0040.01114.77
7.2.180.0000.01614.98
7.2.170.0080.00414.83
7.2.160.0060.00314.99
7.2.150.0100.00617.02
7.2.140.0120.00616.82
7.2.130.0050.01016.69
7.2.120.0050.01116.66
7.2.110.0110.00516.67
7.2.100.0040.00816.66
7.2.90.0080.00516.56
7.2.80.0050.01016.86
7.2.70.0040.00916.66
7.2.60.0060.00716.79
7.2.50.0020.01116.94
7.2.40.0070.00416.84
7.2.30.0030.01016.75
7.2.20.0070.00516.77
7.2.10.0050.00816.92
7.2.00.0060.00917.53
7.1.330.0000.01315.99
7.1.320.0000.01416.00
7.1.310.0100.00616.06
7.1.300.0000.01215.77
7.1.290.0090.00615.54
7.1.280.0050.00515.76
7.1.270.0050.00915.81
7.1.260.0100.00315.43
7.1.250.0040.00615.69
7.1.240.0060.00515.47
7.1.230.0050.00815.60
7.1.220.0050.00715.65
7.1.210.0020.00815.79
7.1.200.0030.00815.65
7.1.190.0020.01015.70
7.1.180.0060.00915.75
7.1.170.0030.00915.59
7.1.160.0070.00715.63
7.1.150.0030.00715.79
7.1.140.0050.00815.69
7.1.130.0110.00515.74
7.1.120.0060.00515.74
7.1.110.0060.00715.68
7.1.100.0080.00416.55
7.1.90.0050.00915.73
7.1.80.0080.00415.74
7.1.70.0030.00816.21
7.1.60.0090.00816.81
7.1.50.0080.01016.20
7.1.40.0060.00515.77
7.1.30.0060.00415.67
7.1.20.0050.00515.54
7.1.10.0100.00515.67
7.1.00.0040.01718.02
7.0.330.0080.00515.37
7.0.320.0050.00515.24
7.0.310.0040.00815.30
7.0.300.0030.01015.05
7.0.290.0060.00314.93
7.0.280.0050.00615.20
7.0.270.0040.00515.35
7.0.260.0000.01415.14
7.0.250.0030.00715.09
7.0.240.0080.00415.43
7.0.230.0050.00815.10
7.0.220.0060.00614.93
7.0.210.0060.00615.25
7.0.200.0070.00315.69
7.0.190.0020.00715.26
7.0.180.0050.00514.99
7.0.170.0070.00615.13
7.0.160.0030.00815.22
7.0.150.0010.01115.29
7.0.140.0040.02817.52
7.0.130.0110.00515.27
7.0.120.0050.00715.46
7.0.110.0120.02716.83
7.0.100.0060.03116.88
7.0.90.0040.03316.71
7.0.80.0040.03216.65
7.0.70.0060.03016.58
7.0.60.0020.03716.88
7.0.50.0070.01816.90
7.0.40.0050.03415.62
7.0.30.0100.03015.58
7.0.20.0050.01815.54
7.0.10.0050.03515.55
7.0.00.0050.02115.59
5.6.400.0000.00914.04
5.6.390.0170.00014.30
5.6.380.0080.00314.35
5.6.370.0040.00714.10
5.6.360.0060.00513.84
5.6.350.0060.00514.38
5.6.340.0050.00814.23
5.6.330.0040.00913.92
5.6.320.0050.01014.13
5.6.310.0080.00514.19
5.6.300.0060.00414.07
5.6.290.0030.01014.14
5.6.280.0070.02816.65
5.6.270.0100.00313.91
5.6.260.0100.02616.34
5.6.250.0100.03016.34
5.6.240.0100.02816.31
5.6.230.0040.03016.27
5.6.220.0040.02416.39
5.6.210.0090.02116.42
5.6.200.0040.03216.33
5.6.190.0040.03116.38
5.6.180.0080.03116.44
5.6.170.0080.03016.55
5.6.160.0050.03316.58
5.6.150.0050.03316.40
5.6.140.0060.02616.55
5.6.130.0080.03216.47
5.6.120.0040.03216.49
5.6.110.0080.02016.52
5.6.100.0100.03016.46
5.6.90.0100.02916.40
5.6.80.0100.02516.19
5.6.70.0030.03216.27
5.6.60.0070.03116.28
5.6.50.0050.01816.17
5.6.40.0110.02316.23
5.6.30.0050.02516.26
5.6.20.0050.03216.27
5.6.10.0030.03316.09
5.6.00.0030.03216.19
5.5.380.0070.02615.26
5.5.370.0030.02615.26
5.5.360.0100.02715.21
5.5.350.0070.02415.01
5.5.340.0060.02015.18
5.5.330.0070.01915.22
5.5.320.0020.03615.23
5.5.310.0070.02715.30
5.5.300.0090.02615.31
5.5.290.0040.03315.33
5.5.280.0050.03315.29
5.5.270.0080.02915.03
5.5.260.0030.02915.24
5.5.250.0040.03215.09
5.5.240.0090.02615.04
5.5.230.0080.02914.99
5.5.220.0050.03214.96
5.5.210.0070.02714.83
5.5.200.0060.03014.90
5.5.190.0080.02114.91
5.5.180.0020.03115.02
5.5.170.0040.00812.07
5.5.160.0100.02114.96
5.5.150.0050.01815.09
5.5.140.0050.02715.03
5.5.130.0030.02115.20
5.5.120.0060.02315.18
5.5.110.0060.02315.04
5.5.100.0020.03315.03
5.5.90.0040.02915.07
5.5.80.0090.02415.03
5.5.70.0060.03015.10
5.5.60.0060.02914.96
5.5.50.0050.02915.02
5.5.40.0090.02715.09
5.5.30.0070.01414.86
5.5.20.0100.02715.19
5.5.10.0060.02815.06
5.5.00.0050.03014.79
5.4.450.0040.03013.81
5.4.440.0030.03013.61
5.4.430.0030.03313.67
5.4.420.0050.02813.76
5.4.410.0060.02813.78
5.4.400.0040.02813.61
5.4.390.0070.02713.58
5.4.380.0080.02613.61
5.4.370.0040.02513.52
5.4.360.0040.01613.52
5.4.350.0040.01713.75
5.4.340.0000.03413.41
5.4.330.0050.00210.91
5.4.320.0040.02813.60
5.4.310.0060.02313.57
5.4.300.0020.01913.66
5.4.290.0070.01713.65
5.4.280.0050.02213.76
5.4.270.0020.02713.53
5.4.260.0060.02113.43
5.4.250.0040.02713.59
5.4.240.0080.02613.51
5.4.230.0030.02813.55
5.4.220.0050.01613.52
5.4.210.0060.02813.65
5.4.200.0070.02813.52
5.4.190.0050.03113.53
5.4.180.0020.01913.65
5.4.170.0050.02413.65
5.4.160.0050.02813.46
5.4.150.0060.01713.55
5.4.140.0040.02412.63
5.4.130.0030.02912.61
5.4.120.0020.02012.67
5.4.110.0050.01712.63
5.4.100.0030.03112.68
5.4.90.0030.03312.65
5.4.80.0010.01912.52
5.4.70.0040.03012.51
5.4.60.0050.02712.77
5.4.50.0080.02412.64
5.4.40.0060.02512.53
5.4.30.0060.01712.70
5.4.20.0030.02912.87
5.4.10.0040.02912.56
5.4.00.0070.02612.61
5.3.290.0020.03011.85
5.3.280.0030.02111.72
5.3.270.0020.03211.87
5.3.260.0090.02411.93
5.3.250.0040.01911.90
5.3.240.0020.01911.72
5.3.230.0060.02411.82
5.3.220.0030.02011.68
5.3.210.0080.02911.69
5.3.200.0040.02811.60
5.3.190.0020.02311.74
5.3.180.0020.01711.80
5.3.170.0080.02611.81
5.3.160.0050.02711.83
5.3.150.0040.02711.76
5.3.140.0030.02911.70
5.3.130.0050.01711.79
5.3.120.0010.03211.76
5.3.110.0020.02911.73
5.3.100.0020.03411.54
5.3.90.0050.02811.63
5.3.80.0050.02911.45
5.3.70.0070.01611.45
5.3.60.0040.02811.61
5.3.50.0070.01411.46
5.3.40.0030.03211.44
5.3.30.0040.02811.37
5.3.20.0080.02511.39
5.3.10.0050.02311.34
5.3.00.0090.02411.30
5.2.170.0020.03310.93
5.2.160.0030.03110.93
5.2.150.0030.02510.93
5.2.140.0030.03010.93
5.2.130.0030.02810.93
5.2.120.0050.03210.93
5.2.110.0080.03010.93
5.2.100.0030.02110.93
5.2.90.0040.03310.93
5.2.80.0030.03110.93
5.2.70.0080.02810.93
5.2.60.0080.02710.93
5.2.50.0030.03510.93
5.2.40.0020.02110.93
5.2.30.0080.01710.93
5.2.20.0030.03010.93
5.2.10.0030.03310.93
5.2.00.0050.02710.93
5.1.60.0040.02510.93
5.1.50.0020.01810.93
5.1.40.0030.02310.93
5.1.30.0050.02810.93
5.1.20.0020.02310.93
5.1.10.0050.02210.93
5.1.00.0020.02810.93
5.0.50.0030.02310.93
5.0.40.0060.02010.93
5.0.30.0030.02610.93
5.0.20.0030.02210.93
5.0.10.0050.01810.93
5.0.00.0020.03710.93
4.4.90.0010.01510.93
4.4.80.0050.00810.93
4.4.70.0000.01910.93
4.4.60.0000.02110.93
4.4.50.0000.01710.93
4.4.40.0070.02310.93
4.4.30.0040.01810.93
4.4.20.0020.01810.93
4.4.10.0020.02010.93
4.4.00.0050.02710.93
4.3.110.0020.02010.93
4.3.100.0050.00910.93
4.3.90.0020.01710.93
4.3.80.0030.02610.93
4.3.70.0030.01810.93
4.3.60.0020.01910.93
4.3.50.0000.02110.93
4.3.40.0040.02510.93
4.3.30.0020.02010.93
4.3.20.0010.01810.93
4.3.10.0050.01510.93
4.3.00.0010.02010.93

preferences:
44.17 ms | 400 KiB | 5 Q