3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(0); $a = "abcdefffefa"; for($i = 0; $i < 14; $i++) $a = $a . $a; $b = "afe"; print(str_replace(array_unique(str_split($b)), "", $a));

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)
8.3.60.0100.00618.18
8.3.50.0130.01018.19
8.3.40.0070.01319.18
8.3.30.0100.00719.46
8.3.20.0090.00020.81
8.3.10.0090.00020.36
8.3.00.0090.00019.13
8.2.180.0110.00718.16
8.2.170.0100.00722.96
8.2.160.0040.01220.77
8.2.150.0040.00424.18
8.2.140.0040.00724.66
8.2.130.0040.00426.16
8.2.120.0030.00621.00
8.2.110.0100.00020.85
8.2.100.0070.01018.66
8.2.90.0030.00619.73
8.2.80.0040.00418.13
8.2.70.0060.00318.13
8.2.60.0030.00618.43
8.2.50.0030.00718.13
8.2.40.0060.00318.84
8.2.30.0050.00419.77
8.2.20.0040.00418.22
8.2.10.0030.00618.45
8.2.00.0080.00018.09
8.1.280.0100.00725.92
8.1.270.0070.00323.98
8.1.260.0060.00326.35
8.1.250.0050.00528.09
8.1.240.0060.00323.84
8.1.230.0070.00719.65
8.1.220.0030.00618.28
8.1.210.0030.00618.77
8.1.200.0120.00017.73
8.1.190.0050.00517.86
8.1.180.0060.00318.10
8.1.170.0030.00719.08
8.1.160.0050.00522.48
8.1.150.0000.00919.34
8.1.140.0000.00917.78
8.1.130.0040.00418.25
8.1.120.0030.00617.91
8.1.110.0040.00417.84
8.1.100.0030.00617.87
8.1.90.0000.00917.95
8.1.80.0000.01017.86
8.1.70.0050.00517.78
8.1.60.0030.00717.98
8.1.50.0000.01017.84
8.1.40.0030.00617.97
8.1.30.0030.00618.02
8.1.20.0070.00318.05
8.1.10.0030.00717.94
8.1.00.0030.00617.97
8.0.300.0000.01118.77
8.0.290.0000.01017.25
8.0.280.0000.00918.98
8.0.270.0030.00617.60
8.0.260.0060.00317.67
8.0.250.0000.00917.31
8.0.240.0090.00017.30
8.0.230.0090.00017.47
8.0.220.0000.00817.27
8.0.210.0070.00317.39
8.0.200.0040.00417.47
8.0.190.0000.01017.42
8.0.180.0040.00517.38
8.0.170.0030.00617.24
8.0.160.0050.00517.37
8.0.150.0070.00317.28
8.0.140.0090.00017.35
8.0.130.0040.00413.74
8.0.120.0070.00317.31
8.0.110.0030.00717.37
8.0.100.0030.00617.18
8.0.90.0000.00917.24
8.0.80.0100.01717.27
8.0.70.0030.00617.35
8.0.60.0030.00717.43
8.0.50.0070.00317.42
8.0.30.0180.00717.46
8.0.20.0110.01317.42
8.0.10.0000.00917.25
8.0.00.0060.01817.08
7.4.330.0040.00415.05
7.4.320.0000.00916.93
7.4.300.0040.00416.92
7.4.290.0040.00416.93
7.4.280.0060.00316.85
7.4.270.0030.00616.94
7.4.260.0000.00916.92
7.4.250.0000.01016.77
7.4.240.0000.00916.94
7.4.230.0030.00617.04
7.4.220.0120.01616.89
7.4.210.0050.01117.00
7.4.200.0030.00616.92
7.4.160.0070.01416.89
7.4.150.0120.00917.40
7.4.140.0160.00817.86
7.4.130.0100.01016.89
7.4.120.0120.00916.99
7.4.110.0030.01616.70
7.4.100.0120.00916.91
7.4.90.0140.00717.01
7.4.80.0230.00719.39
7.4.70.0160.00416.99
7.4.60.0060.01316.91
7.4.50.0000.01116.69
7.4.40.0130.00616.94
7.4.30.0080.01116.95
7.3.330.0000.00813.54
7.3.320.0040.00413.65
7.3.310.0050.00516.61
7.3.300.0000.00916.75
7.3.290.0040.01416.80
7.3.280.0110.01016.75
7.3.270.0080.01217.40
7.3.260.0100.01716.64
7.3.250.0080.01516.82
7.3.240.0120.00816.83
7.3.230.0070.01416.70
7.3.210.0130.00717.03
7.3.200.0090.01219.39
7.3.190.0060.01917.05
7.3.180.0110.00717.07
7.3.170.0140.00716.66
7.3.160.0030.01716.57
7.2.330.0090.01217.18
7.2.320.0060.01516.89
7.2.310.0160.00917.12
7.2.300.0090.00916.94
7.2.290.0100.01017.01
7.2.100.0080.00815.08
7.2.90.1980.00714.80
7.2.80.0310.01415.11
7.2.70.0000.01715.23
7.2.60.0100.01015.57
7.2.50.1330.01315.24
7.2.40.1650.01015.62
7.2.30.0120.00415.36
7.2.20.0110.00715.48
7.2.10.1360.00715.47
7.2.00.0110.00815.29
7.1.220.0330.00714.25
7.1.210.0450.01014.38
7.1.200.1800.00714.44
7.1.190.1560.00914.27
7.1.180.1370.00913.95
7.1.170.0050.01014.53
7.1.160.1470.00613.82
7.1.150.1280.01414.46
7.1.140.1350.00314.00
7.1.130.1330.00614.29
7.1.120.0040.01214.14
7.1.110.1160.00914.44
7.1.100.1360.00314.35
7.1.90.1290.00613.98
7.1.80.1860.00614.32
7.1.70.1590.00614.24
7.1.60.1700.01332.36
7.1.50.2130.00932.22
7.1.40.0230.01032.32
7.1.30.0260.01032.30
7.1.20.2390.01332.31
7.1.10.0100.00714.07
7.1.00.0570.00714.29
7.0.310.1570.00714.17
7.0.300.0140.00714.20
7.0.290.1420.00613.83
7.0.280.0120.00813.90
7.0.270.0650.00613.78
7.0.260.1410.00313.70
7.0.250.1280.00613.84
7.0.240.1320.00613.84
7.0.230.0090.00614.11
7.0.220.1420.01413.98
7.0.210.0690.00313.75
7.0.200.1920.00313.72
7.0.190.2090.00913.83
7.0.180.0980.00713.79
7.0.170.0050.00913.95
7.0.160.2510.01013.91
7.0.150.0050.01014.08
7.0.140.1970.00314.09
7.0.130.2250.01014.21
7.0.120.2370.00014.15
7.0.110.0960.00313.73
7.0.100.2300.01214.18
7.0.90.2370.00613.90
7.0.80.0100.01013.77
7.0.70.0330.00814.22
7.0.60.2570.01013.96
7.0.50.1850.00014.14
7.0.40.1060.00614.07
7.0.30.0170.00814.10
7.0.20.0050.01113.79
7.0.10.0490.00714.12
7.0.00.2720.00314.07
5.6.380.0000.01415.00
5.6.370.0070.01015.02
5.6.360.0060.00915.18
5.6.350.0040.01115.05
5.6.340.0110.00314.64
5.6.330.0040.01115.02
5.6.320.0030.01014.88
5.6.310.0110.00615.13
5.6.300.0080.00614.74
5.6.290.0030.01014.65
5.6.280.0050.00814.84
5.6.270.0090.00615.04
5.6.260.0000.01414.80
5.6.250.0000.01814.93
5.6.240.0170.00014.96
5.6.230.0140.00314.96
5.6.220.0060.00914.89
5.6.210.0040.01114.75
5.6.200.0040.01214.80
5.6.190.0030.01314.69
5.6.180.0120.00614.80
5.6.170.0110.00314.77
5.6.160.0050.00814.87
5.6.150.0080.00814.85
5.6.140.0000.02115.04
5.6.130.0090.00615.09
5.6.120.0040.01114.76
5.6.110.0110.00615.05
5.6.100.0090.00515.03
5.6.90.0090.00914.57
5.6.80.0000.01614.97
5.6.70.0090.00714.98
5.6.60.0060.00914.77
5.6.50.0100.00514.82
5.6.40.0000.01814.90
5.6.30.0070.00714.97
5.6.20.0080.00814.57
5.6.10.0110.00414.98
5.6.00.0040.01114.64
5.5.380.0090.00513.61
5.5.370.0000.01113.61
5.5.360.0030.01013.61
5.5.350.0030.00713.61
5.5.340.0040.00813.61
5.5.330.0110.00013.61
5.5.320.0060.00913.61
5.5.310.0040.00813.61
5.5.300.0060.00613.61
5.5.290.0040.00813.61
5.5.280.0000.01213.61
5.5.270.0090.00313.61
5.5.260.0120.00013.61
5.5.250.0080.00413.61
5.5.240.0120.00013.61
5.5.230.0110.00013.61
5.5.220.0070.00413.61
5.5.210.0050.00713.61
5.5.200.0040.00813.61
5.5.190.0060.00613.61
5.5.180.0030.00913.61
5.5.170.0100.00515.02
5.5.160.0030.01013.61
5.5.150.0040.00813.61
5.4.450.0040.00713.61
5.4.440.0000.01113.61
5.4.430.0080.00313.61
5.4.420.0030.01013.61
5.4.410.0040.00713.61
5.4.400.0000.01213.61
5.4.390.0060.00613.61
5.4.380.0120.00013.61
5.4.370.0000.01213.61
5.4.360.0030.00813.61
5.4.350.0040.00813.61
5.4.340.0000.01113.61
5.4.330.0090.00313.61
5.4.320.0110.00013.61
5.4.310.0030.01213.61

preferences:
58.68 ms | 400 KiB | 5 Q