3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = 0; $a = array(&$x); $c =& $a; $b = $a; $x = 2; unset($x); $b[1]++; $b[0]++; echo $a[0], ' ', $b[0];

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)
8.3.60.0060.01518.68
8.3.50.0100.00821.99
8.3.40.0110.00718.63
8.3.30.0110.00719.21
8.3.20.0100.00320.16
8.3.10.0080.00021.75
8.3.00.0070.00718.05
8.2.180.0180.00016.85
8.2.170.0150.00022.96
8.2.160.0080.01120.35
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0080.00626.16
8.2.120.0090.00020.90
8.2.110.0080.00022.25
8.2.100.0090.00317.78
8.2.90.0000.00819.34
8.2.80.0040.00417.97
8.2.70.0060.00317.88
8.2.60.0000.00917.93
8.2.50.0040.00418.07
8.2.40.0000.00718.28
8.2.30.0030.00618.16
8.2.20.0040.00417.80
8.2.10.0040.00418.00
8.2.00.0040.00417.75
8.1.280.0190.00325.92
8.1.270.0150.00423.96
8.1.260.0070.00726.35
8.1.250.0040.00428.09
8.1.240.0060.00323.77
8.1.230.0090.00319.06
8.1.220.0040.00417.74
8.1.210.0060.00318.77
8.1.200.0000.00817.35
8.1.190.0050.00317.25
8.1.180.0030.00518.10
8.1.170.0030.00618.64
8.1.160.0000.00722.09
8.1.150.0000.00718.76
8.1.140.0040.00417.50
8.1.130.0030.00317.78
8.1.120.0020.00517.35
8.1.110.0040.00417.42
8.1.100.0050.00217.46
8.1.90.0000.00817.45
8.1.80.0030.00617.53
8.1.70.0050.00217.42
8.1.60.0040.00417.55
8.1.50.0000.00917.40
8.1.40.0040.00417.41
8.1.30.0040.00417.48
8.1.20.0000.00717.63
8.1.10.0050.00217.55
8.1.00.0000.00717.34
8.0.300.0090.00018.77
8.0.290.0040.00416.63
8.0.280.0000.00718.46
8.0.270.0030.00317.25
8.0.260.0030.00317.16
8.0.250.0030.00317.00
8.0.240.0030.00317.09
8.0.230.0000.00716.90
8.0.220.0000.00716.87
8.0.210.0050.00316.91
8.0.200.0030.00317.03
8.0.190.0090.00017.10
8.0.180.0000.00817.01
8.0.170.0050.00316.99
8.0.160.0070.00016.98
8.0.150.0080.00016.91
8.0.140.0000.00716.82
8.0.130.0030.00313.38
8.0.120.0040.00416.80
8.0.110.0000.00817.02
8.0.100.0040.00417.02
8.0.90.0000.00716.86
8.0.80.0070.01017.00
8.0.70.0040.00417.01
8.0.60.0000.00716.91
8.0.50.0020.00516.91
8.0.30.0110.01117.08
8.0.20.0090.00917.40
8.0.10.0000.00717.11
8.0.00.0090.00916.91
7.4.330.0000.00515.11
7.4.320.0000.00616.61
7.4.300.0030.00316.51
7.4.290.0030.00316.53
7.4.280.0060.00516.51
7.4.270.0070.00016.52
7.4.260.0070.00016.48
7.4.250.0040.00416.52
7.4.240.0020.00616.54
7.4.230.0000.00716.59
7.4.220.0100.01716.56
7.4.210.0040.01716.61
7.4.200.0070.00016.54
7.4.160.0100.00616.63
7.4.150.0070.01017.40
7.4.140.0110.00617.86
7.4.130.0100.00716.53
7.4.120.0070.01016.63
7.4.110.0100.00716.56
7.4.100.0110.00716.74
7.4.90.0030.01416.56
7.4.80.0060.01219.39
7.4.70.0090.01516.50
7.4.60.0080.00816.64
7.4.50.0000.00416.40
7.4.40.0120.00416.49
7.4.30.0070.01416.42
7.4.00.0050.01214.83
7.3.330.0000.00613.32
7.3.320.0050.00013.11
7.3.310.0050.00316.46
7.3.300.0070.00016.40
7.3.290.0150.00016.43
7.3.280.0070.01316.36
7.3.270.0030.01817.40
7.3.260.0170.00016.32
7.3.250.0060.01416.57
7.3.240.0100.00716.37
7.3.230.0120.00916.39
7.3.210.0090.00916.51
7.3.200.0120.00319.39
7.3.190.0030.01316.52
7.3.180.0090.00616.46
7.3.170.0030.01316.51
7.3.160.0030.01216.66
7.3.120.0050.01214.88
7.3.110.0100.00714.79
7.3.100.0090.00914.54
7.3.90.0070.01014.79
7.3.80.0070.01114.88
7.3.70.0030.00714.77
7.3.60.0040.00814.49
7.3.50.0060.00314.77
7.3.40.0030.01014.89
7.3.30.0030.00914.80
7.3.20.0120.00316.27
7.3.10.0060.00616.58
7.3.00.0070.00616.70
7.2.330.0120.01216.40
7.2.320.0070.01016.68
7.2.310.0090.00616.64
7.2.300.0130.00316.39
7.2.290.0070.01016.72
7.2.250.0070.00714.79
7.2.240.0100.00615.08
7.2.230.0060.00915.02
7.2.220.0030.01215.00
7.2.210.0090.00915.13
7.2.200.0040.01114.96
7.2.190.0090.00614.93
7.2.180.0000.01114.68
7.2.170.0040.00715.09
7.2.160.0030.01215.11
7.2.150.0040.01116.85
7.2.140.0040.00816.96
7.2.130.0040.01016.76
7.2.120.0080.00416.72
7.2.110.0090.00416.69
7.2.100.0100.00516.88
7.2.90.0030.00916.78
7.2.80.0090.00716.88
7.2.70.0060.00916.95
7.2.60.0030.00716.92
7.2.50.0040.00516.93
7.2.40.0050.00516.81
7.2.30.0050.00816.86
7.2.20.0070.00716.93
7.2.10.0030.01016.88
7.2.00.0020.01017.73
7.1.330.0070.00715.65
7.1.320.0040.01415.81
7.1.310.0000.00815.77
7.1.300.0040.00815.77
7.1.290.0070.00715.71
7.1.280.0070.00715.86
7.1.270.0030.01015.66
7.1.260.0120.00015.81
7.1.250.0080.00415.84
7.1.240.0070.00715.57
7.1.230.0060.00315.68
7.1.220.0060.00315.78
7.1.210.0030.00715.91
7.1.200.0050.00715.82
7.1.190.0060.00315.88
7.1.180.0100.00015.59
7.1.170.0070.00715.57
7.1.160.0030.00615.68
7.1.150.0060.00615.78
7.1.140.0130.00315.71
7.1.130.0040.00715.86
7.1.120.0120.00315.79
7.1.110.0060.00915.72
7.1.100.0050.00716.86
7.1.90.0060.01015.88
7.1.80.0040.01115.76
7.1.70.0020.00716.54
7.1.60.0040.01317.54
7.1.50.0090.00916.41
7.1.40.0060.00615.64
7.1.30.0120.00315.95
7.1.20.0040.01115.79
7.1.10.0030.01015.62
7.1.00.0030.04019.13
7.0.330.0070.00714.91
7.0.320.0060.00915.39
7.0.310.0060.00315.38
7.0.300.0000.01115.24
7.0.290.0070.00415.39
7.0.280.0000.01215.14
7.0.270.0030.00915.34
7.0.260.0030.00915.22
7.0.250.0080.00315.29
7.0.240.0000.01415.44
7.0.230.0050.00515.52
7.0.220.0040.00815.25
7.0.210.0000.01315.35
7.0.200.0030.00816.14
7.0.190.0040.00415.39
7.0.180.0060.00915.25
7.0.170.0060.00615.28
7.0.160.0040.00415.40
7.0.150.0000.01415.35
7.0.140.0050.04018.71
7.0.130.0000.01115.30
7.0.120.0060.00615.45
7.0.110.0030.00715.32
7.0.100.0050.00515.40
7.0.90.0090.00315.54
7.0.80.0030.00615.44
7.0.70.0000.01215.32
7.0.60.0050.04617.66
7.0.50.0090.02116.67
7.0.40.0030.02616.84
7.0.30.0120.03916.81
7.0.20.0200.03816.75
7.0.10.0080.03716.55
7.0.00.0010.02416.84
5.6.400.0120.00314.18
5.6.390.0040.00814.38
5.6.380.0090.00414.02
5.6.370.0060.00914.43
5.6.360.0080.00814.23
5.6.350.0100.00714.09
5.6.340.0110.00714.32
5.6.330.0000.00914.04
5.6.320.0030.00714.57
5.6.310.0040.00814.35
5.6.300.0030.01113.99
5.6.290.0030.00614.27
5.6.280.0080.03517.45
5.6.270.0090.00314.12
5.6.260.0070.00714.38
5.6.250.0060.00613.99
5.6.240.0050.00513.88
5.6.230.0030.00614.19
5.6.220.0040.00414.02
5.6.210.0090.03817.47
5.6.200.0060.04616.20
5.6.190.0130.03817.61
5.6.180.0180.03717.26
5.6.170.0150.04217.31
5.6.160.0000.03017.29
5.6.150.0080.02816.31
5.6.140.0070.04016.33
5.6.130.0080.04216.21
5.6.120.0120.03817.66
5.6.110.0060.02617.80
5.6.100.0070.03017.64
5.6.90.0050.02717.78
5.6.80.0070.04017.29
5.6.70.0030.01013.98
5.6.60.0080.00414.22
5.6.50.0070.00714.30
5.6.40.0050.00514.30
5.6.30.0030.01014.39
5.6.20.0070.01014.25
5.6.10.0030.01414.23
5.6.00.0060.00614.25
5.5.380.0060.00614.07
5.5.370.0090.00314.28
5.5.360.0060.00613.72
5.5.350.0100.03517.16
5.5.340.0060.02315.84
5.5.330.0060.03517.02
5.5.320.0080.02717.08
5.5.310.0110.04417.10
5.5.300.0100.02216.00
5.5.290.0050.03016.05
5.5.280.0100.04317.51
5.5.270.0050.04717.48
5.5.260.0180.04017.48
5.5.250.0090.04517.42
5.5.240.0020.04717.29
5.5.230.0000.01514.20
5.5.220.0070.01014.10
5.5.210.0060.00914.16
5.5.200.0140.00014.29
5.5.190.0100.00714.12
5.5.180.0090.00614.39
5.5.170.0060.00814.03
5.5.160.0000.00914.16
5.5.150.0070.00714.21
5.5.140.0030.00614.17
5.5.130.0070.00713.73
5.5.120.0000.01313.71
5.5.110.0080.00413.99
5.5.100.0080.00414.20
5.5.90.0110.00313.92
5.5.80.0000.01213.72
5.5.70.0030.00713.78
5.5.60.0030.00714.16
5.5.50.0030.00914.19
5.5.40.0060.00614.27
5.5.30.0040.01114.04
5.5.20.0060.01213.98
5.5.10.0070.00713.70
5.5.00.0080.00413.99
5.4.450.0500.03115.17
5.4.440.0270.03315.07
5.4.430.0330.03115.20
5.4.420.0400.03215.17
5.4.410.0050.02914.70
5.4.400.0130.03814.68
5.4.390.0210.03614.65
5.4.380.0100.03014.87
5.4.370.0120.02514.71
5.4.360.0120.02814.77
5.4.350.0060.02211.43
5.4.340.0050.02411.32
5.4.330.0000.00910.63
5.4.320.0060.02811.57
5.4.310.0080.02011.62
5.4.300.0060.02211.52
5.4.290.0060.03011.52
5.4.280.0050.02311.54
5.4.270.0060.02311.53
5.4.260.0070.02011.51
5.4.250.0030.02511.64
5.4.240.0040.02311.53
5.4.230.0050.02411.61
5.4.220.0080.02111.54
5.4.210.0040.02011.54
5.4.200.0050.02411.52
5.4.190.0070.02011.50
5.4.180.0060.02611.54
5.4.170.0070.02111.61
5.4.160.0060.02011.47
5.4.150.0060.02211.46
5.4.140.0050.02511.31
5.4.130.0040.02411.52
5.4.120.0030.02411.30
5.4.110.0030.02111.50
5.4.100.0080.02011.28
5.4.90.0060.02311.35
5.4.80.0030.02511.34
5.4.70.0070.01811.31
5.4.60.0040.02211.49
5.4.50.0040.01911.39
5.4.40.0050.02211.31
5.4.30.0060.02311.40
5.4.20.0040.02011.34
5.4.10.0060.02011.32
5.4.00.0060.02111.06
5.3.290.0050.02511.76
5.3.280.0040.02211.65
5.3.270.0020.02711.66
5.3.260.0060.02111.66
5.3.250.0070.02011.66
5.3.240.0050.02111.66
5.3.230.0080.02011.65
5.3.220.0080.01611.64
5.3.210.0060.02211.64
5.3.200.0040.02511.64
5.3.190.0070.01811.63
5.3.180.0040.02811.63
5.3.170.0060.02511.63
5.3.160.0060.02311.63
5.3.150.0080.01911.64
5.3.140.0050.02211.63
5.3.130.0060.02511.64
5.3.120.0070.01911.65
5.3.110.0060.02211.63
5.3.100.0050.02111.36
5.3.90.0060.02211.34
5.3.80.0050.01911.33
5.3.70.0070.02011.34
5.3.60.0060.02311.33
5.3.50.0080.01711.30
5.3.40.0030.02011.30
5.3.30.0010.02211.27
5.3.20.0050.01911.16
5.3.10.0050.02111.14
5.3.00.0020.02211.13
5.2.170.0040.0369.18
5.2.160.0030.0319.18
5.2.150.0090.0339.18
5.2.140.0020.0359.18
5.2.130.0050.0329.14
5.2.120.0040.0299.14
5.2.110.0050.0289.14
5.2.100.0070.0289.14
5.2.90.0030.0309.14
5.2.80.0010.0379.13
5.2.70.0050.0299.13
5.2.60.0030.0309.09
5.2.50.0040.0309.05
5.2.40.0040.0369.03
5.2.30.0050.0319.01
5.2.20.0030.0369.00
5.2.10.0050.0348.93
5.2.00.0030.0308.79
5.1.60.0010.0268.07
5.1.50.0020.0278.07
5.1.40.0040.0248.06
5.1.30.0050.0258.41
5.1.20.0050.0258.43
5.1.10.0050.0248.15
5.1.00.0030.0278.15
5.0.50.0040.0196.63
5.0.40.0030.0196.49
5.0.30.0060.0306.30
5.0.20.0040.0186.27
5.0.10.0020.0266.25
5.0.00.0030.0326.24
4.4.90.0030.0154.78
4.4.80.0030.0174.76
4.4.70.0030.0234.75
4.4.60.0030.0144.76
4.4.50.0030.0154.77
4.4.40.0010.0274.71
4.4.30.0010.0174.76
4.4.20.0020.0164.84
4.4.10.0010.0204.85
4.4.00.0030.0274.76
4.3.110.0030.0194.67
4.3.100.0010.0194.67
4.3.90.0010.0164.63
4.3.80.0040.0234.58
4.3.70.0050.0154.63
4.3.60.0030.0184.63
4.3.50.0030.0194.62
4.3.40.0040.0324.54
4.3.30.0010.0243.29
4.3.20.0020.0163.27
4.3.10.0030.0203.23
4.3.00.0130.0207.14

preferences:
45.14 ms | 401 KiB | 5 Q