3v4l.org

run code in 300+ PHP versions simultaneously
<?php $items=array("a","b","c","d"); for ($i=0;$i<4;$i++) { $item=&$items[$i]; $item=$item.$item; } print_r($items); foreach ($items as $item) echo $item."\n"; print_r($items);

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)
8.3.40.0140.00018.84
8.3.30.0110.00418.92
8.3.20.0070.00020.39
8.3.10.0090.00023.83
8.3.00.0080.00020.88
8.2.170.0070.00722.96
8.2.160.0100.00320.38
8.2.150.0030.00525.66
8.2.140.0070.00024.66
8.2.130.0090.00926.16
8.2.120.0040.00422.06
8.2.110.0040.00422.03
8.2.100.0080.00317.72
8.2.90.0000.00819.35
8.2.80.0040.00418.04
8.2.70.0040.00417.38
8.2.60.0030.00517.93
8.2.50.0080.00018.07
8.2.40.0070.00018.22
8.2.30.0030.00518.15
8.2.20.0000.00917.72
8.2.10.0040.00417.86
8.2.00.0000.00717.74
8.1.270.0090.00023.95
8.1.260.0000.00826.35
8.1.250.0080.00028.09
8.1.240.0030.00723.82
8.1.230.0080.00319.09
8.1.220.0000.00817.78
8.1.210.0050.00318.77
8.1.200.0030.00617.35
8.1.190.0040.00417.41
8.1.180.0000.00918.10
8.1.170.0060.00318.58
8.1.160.0040.00421.93
8.1.150.0080.00018.54
8.1.140.0080.00017.42
8.1.130.0040.00417.73
8.1.120.0040.00417.36
8.1.110.0040.00417.45
8.1.100.0030.00317.39
8.1.90.0030.00717.36
8.1.80.0040.00417.42
8.1.70.0000.00717.46
8.1.60.0060.00317.51
8.1.50.0040.00417.54
8.1.40.0000.00817.51
8.1.30.0040.00417.63
8.1.20.0000.00817.55
8.1.10.0040.00417.38
8.1.00.0000.00817.39
8.0.300.0080.00018.77
8.0.290.0070.00017.13
8.0.280.0070.00018.44
8.0.270.0030.00316.73
8.0.260.0030.00316.83
8.0.250.0080.00016.83
8.0.240.0040.00416.94
8.0.230.0030.00316.84
8.0.220.0040.00416.80
8.0.210.0040.00416.78
8.0.200.0000.00716.91
8.0.190.0000.00816.93
8.0.180.0040.00416.90
8.0.170.0000.00816.79
8.0.160.0060.00316.91
8.0.150.0080.00316.82
8.0.140.0030.00616.88
8.0.130.0030.00313.36
8.0.120.0080.00016.74
8.0.110.0000.00716.89
8.0.100.0000.00716.79
8.0.90.0040.00416.75
8.0.80.0080.00816.91
8.0.70.0000.00716.92
8.0.60.0000.00716.85
8.0.50.0000.00716.84
8.0.30.0130.00616.96
8.0.20.0090.01117.40
8.0.10.0060.00317.05
8.0.00.0110.00916.80
7.4.330.0020.00215.14
7.4.320.0040.00416.49
7.4.300.0070.00016.39
7.4.290.0000.00716.59
7.4.280.0070.00016.50
7.4.270.0030.00316.69
7.4.260.0040.00416.54
7.4.250.0060.00316.45
7.4.240.0020.00516.49
7.4.230.0000.00816.66
7.4.220.0070.01016.50
7.4.210.0020.01316.50
7.4.200.0000.00816.50
7.4.190.0000.00716.59
7.4.160.0000.01716.49
7.4.150.0140.00317.40
7.4.140.0100.01017.86
7.4.130.0060.01116.46
7.4.120.0060.01116.44
7.4.110.0100.00716.54
7.4.100.0070.01016.55
7.4.90.0130.04016.61
7.4.80.0100.01119.39
7.4.70.0140.00516.31
7.4.60.0090.00916.54
7.4.50.0030.00616.65
7.4.40.0070.00422.77
7.4.30.0070.00716.52
7.4.10.0120.00616.44
7.4.00.0050.01115.56
7.3.330.0030.00313.07
7.3.320.0030.00513.04
7.3.310.0040.00416.14
7.3.300.0000.00716.31
7.3.290.0070.01016.39
7.3.280.0090.00816.35
7.3.270.0100.00717.40
7.3.260.0060.01216.38
7.3.250.0070.01016.43
7.3.240.0100.00916.48
7.3.230.0070.01016.39
7.3.210.0130.01016.54
7.3.200.0030.01419.39
7.3.190.0080.01416.33
7.3.180.0060.00916.63
7.3.170.0120.00416.32
7.3.160.0120.00616.42
7.3.130.0080.01116.63
7.3.120.0080.00815.57
7.3.110.0090.00616.46
7.3.100.0040.00816.28
7.3.90.0070.00716.39
7.3.80.0000.01416.27
7.3.70.0000.01116.47
7.3.60.0120.00316.19
7.3.50.0030.01216.39
7.3.40.0000.01416.26
7.3.30.0060.00616.32
7.3.20.0070.01018.13
7.3.10.0030.00718.18
7.3.00.0090.00918.34
7.2.330.0060.01116.76
7.2.320.0090.00816.56
7.2.310.0090.00916.66
7.2.300.0030.01316.69
7.2.290.0100.00616.62
7.2.260.0100.01016.75
7.2.250.0130.00716.79
7.2.240.0030.01216.40
7.2.230.0030.01416.64
7.2.220.0110.00716.43
7.2.210.0100.00716.66
7.2.200.0090.00616.56
7.2.190.0030.01316.59
7.2.180.0070.00716.65
7.2.170.0040.01216.60
7.2.160.0100.00316.43
7.2.150.0000.01618.29
7.2.140.0100.00718.31
7.2.130.0100.01018.35
7.2.120.0120.00018.42
7.2.110.0040.01518.29
7.2.100.0030.01318.55
7.2.90.0070.01018.54
7.2.80.0040.01118.47
7.2.70.0070.01018.38
7.2.60.0100.00517.71
7.2.50.0090.00618.49
7.2.40.0040.00818.52
7.2.30.0100.01018.46
7.2.20.0100.01018.54
7.2.10.0110.00718.24
7.2.00.0090.00618.78
7.1.330.0030.01017.42
7.1.320.0070.00717.38
7.1.310.0040.01117.38
7.1.300.0000.01717.55
7.1.290.0000.01417.32
7.1.280.0000.00917.45
7.1.270.0030.00917.55
7.1.260.0060.00917.18
7.1.250.0060.01317.32
7.1.240.0080.00317.48
7.1.230.0100.00617.33
7.1.220.0140.00317.38
7.1.210.0030.00917.20
7.1.200.0100.00216.43
7.1.190.0070.01017.38
7.1.180.0070.00717.32
7.1.170.0030.00917.41
7.1.160.0040.00417.48
7.1.150.0080.00817.40
7.1.140.0050.00517.41
7.1.130.0070.00717.39
7.1.120.0130.00317.27
7.1.110.0070.00717.43
7.1.100.0080.00617.59
7.1.90.0070.00417.19
7.1.80.0070.00717.31
7.1.70.0040.00517.24
7.1.60.0100.01118.15
7.1.50.0120.01025.92
7.1.40.0060.00917.45
7.1.30.0030.00917.46
7.1.20.0090.00617.19
7.1.10.0080.00817.34
7.1.00.0070.03919.80
7.0.330.0090.00916.90
7.0.320.0070.01016.96
7.0.310.0070.01017.14
7.0.300.0070.01017.16
7.0.290.0100.00317.20
7.0.280.0030.01016.86
7.0.270.0070.01016.94
7.0.260.0110.00416.86
7.0.250.0120.00017.18
7.0.240.0090.00616.96
7.0.230.0030.00917.23
7.0.220.0060.00917.20
7.0.210.0080.00317.02
7.0.200.0070.01016.62
7.0.190.0040.01116.91
7.0.180.0140.00317.15
7.0.170.0130.00017.12
7.0.160.0080.00417.03
7.0.150.0070.00716.98
7.0.140.0070.03519.57
7.0.130.0040.00716.93
7.0.120.0030.00917.22
7.0.110.0090.00017.12
7.0.100.0050.04518.51
7.0.90.0030.05018.50
7.0.80.0090.04318.40
7.0.70.0030.04318.46
7.0.60.0170.01818.36
7.0.50.0030.04318.56
7.0.40.0080.04217.51
7.0.30.0020.04817.54
7.0.20.0060.04617.51
7.0.10.0080.03317.61
7.0.00.0090.02817.43
5.6.400.0060.00915.59
5.6.390.0060.00315.59
5.6.380.0060.01316.25
5.6.370.0100.00616.14
5.6.360.0080.00416.13
5.6.350.0030.01316.04
5.6.340.0060.01016.02
5.6.330.0030.01315.65
5.6.320.0120.00316.04
5.6.310.0070.01016.04
5.6.300.0060.00916.12
5.6.290.0040.00816.08
5.6.280.0050.04318.47
5.6.270.0060.00615.80
5.6.260.0100.00315.83
5.6.250.0080.04118.32
5.6.240.0120.03618.25
5.6.230.0060.04118.28
5.6.220.0000.03118.24
5.6.210.0080.04018.25
5.6.200.0030.04618.45
5.6.190.0070.04718.51
5.6.180.0050.03918.62
5.6.170.0110.04318.46
5.6.160.0100.04018.65
5.6.150.0100.02318.47
5.6.140.0100.03818.46
5.6.130.0100.04218.61
5.6.120.0120.04018.45
5.6.110.0110.02518.55
5.6.100.0100.03518.42
5.6.90.0110.04318.50
5.6.80.0080.03917.99
5.6.70.0060.04118.11
5.6.60.0060.04018.20
5.6.50.0050.04718.23
5.6.40.0050.04318.18
5.6.30.0040.04218.23
5.6.20.0090.03018.14
5.6.10.0040.02618.30
5.6.00.0110.01718.16
5.5.380.0030.04618.20
5.5.370.0050.04618.21
5.5.360.0070.02718.14
5.5.350.0020.04818.15
5.5.340.0090.04318.35
5.5.330.0070.04018.42
5.5.320.0030.04918.55
5.5.310.0120.04218.49
5.5.300.0120.04018.34
5.5.290.0030.02718.52
5.5.280.0060.02818.25
5.5.270.0070.04918.32
5.5.260.0100.04318.34
5.5.250.0120.02318.27
5.5.240.0030.04418.01
5.5.230.0050.03917.97
5.5.220.0030.04718.03
5.5.210.0040.02717.98
5.5.200.0120.03718.03
5.5.190.0130.03518.02
5.5.180.0050.04418.05
5.5.170.0030.01015.98
5.5.160.0080.02117.83
5.5.150.0070.02218.14
5.5.140.0030.02918.06
5.5.130.0030.02317.96
5.5.120.0090.02018.03
5.5.110.0050.03817.97
5.5.100.0050.02218.03
5.5.90.0020.03917.95
5.5.80.0030.02417.88
5.5.70.0020.02517.93
5.5.60.0010.02917.85
5.5.50.0050.02317.91
5.5.40.0080.03917.98
5.5.30.0060.02817.85
5.5.20.0080.03317.88
5.5.10.0030.02517.83
5.5.00.0030.02317.98
5.4.450.0030.03916.15
5.4.440.0060.03516.19
5.4.430.0050.04616.17
5.4.420.0120.04016.15
5.4.410.0080.03616.01
5.4.400.0020.04215.96
5.4.390.0020.02215.84
5.4.380.0030.02515.86
5.4.370.0060.04315.95
5.4.360.0050.02315.86
5.4.350.0080.03615.91
5.4.340.0030.03715.93
5.4.330.0000.01012.69
5.4.320.0060.03415.86
5.4.310.0090.01715.91
5.4.300.0030.02215.86
5.4.290.0050.02215.98
5.4.280.0020.02315.86
5.4.270.0080.01815.89
5.4.260.0060.02215.95
5.4.250.0030.04015.79
5.4.240.0040.02115.81
5.4.230.0030.02615.90
5.4.220.0060.03515.82
5.4.210.0050.03315.88
5.4.200.0080.03515.83
5.4.190.0020.03115.78
5.4.180.0030.02715.90
5.4.170.0050.02015.76
5.4.160.0040.02615.77
5.4.150.0050.02515.85
5.4.140.0050.01814.52
5.4.130.0070.01814.57
5.4.120.0050.02214.52
5.4.110.0030.02314.61
5.4.100.0050.02114.51
5.4.90.0060.03814.52
5.4.80.0040.01914.59
5.4.70.0050.02514.57
5.4.60.0050.03214.49
5.4.50.0020.02014.59
5.4.40.0030.02014.62
5.4.30.0050.02014.56
5.4.20.0040.01814.58
5.4.10.0050.01814.54
5.4.00.0030.02014.31
5.3.290.0040.02414.03
5.3.280.0000.02413.76
5.3.270.0030.02213.85
5.3.260.0100.01813.80
5.3.250.0050.02213.82
5.3.240.0040.02013.86
5.3.230.0020.02213.82
5.3.220.0070.02013.71
5.3.210.0020.02313.79
5.3.200.0010.02413.70
5.3.190.0080.01813.80
5.3.180.0020.02513.88
5.3.170.0060.02213.92
5.3.160.0030.02513.82
5.3.150.0020.04113.82
5.3.140.0080.02013.81
5.3.130.0030.02513.74
5.3.120.0020.02313.86
5.3.110.0080.03313.82
5.3.100.0020.02513.50
5.3.90.0000.02513.51
5.3.80.0050.01813.49
5.3.70.0040.02213.45
5.3.60.0040.02013.49
5.3.50.0030.02113.40
5.3.40.0080.04113.50
5.3.30.0030.04213.51
5.3.20.0050.04113.32
5.3.10.0050.02213.19
5.3.00.0050.03913.18
5.2.170.0030.06311.24
5.2.160.0030.05011.12
5.2.150.0030.06011.05
5.2.140.0030.06711.20
5.2.130.0100.05311.12
5.2.120.0070.06011.02
5.2.110.0100.05711.11
5.2.100.0030.03711.21
5.2.90.0070.05710.96
5.2.80.0070.03711.22
5.2.70.0130.05011.18
5.2.60.0100.05711.11
5.2.50.0030.06310.93
5.2.40.0100.05710.97
5.2.30.0030.05710.88
5.2.20.0070.05710.90
5.2.10.0070.06010.95
5.2.00.0030.06010.65
5.1.60.0070.05310.65
5.1.50.0070.02710.65
5.1.40.0030.05710.65
5.1.30.0070.05710.65
5.1.20.0030.05710.65
5.1.10.0100.05310.65
5.1.00.0000.04310.65
5.0.50.0030.04310.65
5.0.40.0030.04710.65
5.0.30.0070.05310.65
5.0.20.0070.04010.65
5.0.10.0070.04010.65
5.0.00.0000.06010.65
4.4.90.0030.03310.65
4.4.80.0030.03310.65
4.4.70.0000.03710.65
4.4.60.0030.03710.65
4.4.50.0000.02310.65
4.4.40.0030.04710.65
4.4.30.0070.03310.65
4.4.20.0000.04010.65
4.4.10.0000.03710.65
4.4.00.0000.05710.65
4.3.110.0030.03010.65
4.3.100.0030.03310.65
4.3.90.0070.03010.65
4.3.80.0030.05310.65
4.3.70.0000.02310.65
4.3.60.0030.03310.65
4.3.50.0030.03310.65
4.3.40.0000.05310.65
4.3.30.0030.03310.65
4.3.20.0000.03710.65
4.3.10.0000.03310.65
4.3.00.0000.04010.65

preferences:
40.61 ms | 400 KiB | 5 Q