3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr1 = array(2, 3); $arr2 = $arr1; $arr2[] = 4; // $arr2 is changed, // $arr1 is still array(2, 3) $arr3 = &$arr1; $arr3[] = 4; // now $arr1 and $arr3 are the same $arr4 = (array)$arr1; $arr1[] = 4; var_dump($arr1); var_dump($arr4);

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)
8.3.60.0060.01216.38
8.3.50.0150.00321.28
8.3.40.0100.00718.79
8.3.30.0070.01119.09
8.3.20.0070.00020.29
8.3.10.0070.00021.89
8.3.00.0040.00418.83
8.2.180.0110.00418.41
8.2.170.0070.01418.84
8.2.160.0070.01322.96
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0080.00021.03
8.2.110.0040.00422.20
8.2.100.0070.00418.22
8.2.90.0040.00419.11
8.2.80.0000.00817.97
8.2.70.0030.00517.50
8.2.60.0040.00417.80
8.2.50.0100.00018.07
8.2.40.0030.00618.09
8.2.30.0050.00318.06
8.2.20.0000.00717.61
8.2.10.0050.00218.13
8.2.00.0040.00417.93
8.1.280.0110.00425.92
8.1.270.0060.00320.32
8.1.260.0070.00026.35
8.1.250.0000.00728.09
8.1.240.0060.00323.97
8.1.230.0040.00719.09
8.1.220.0040.00417.79
8.1.210.0040.00418.77
8.1.200.0000.00917.23
8.1.190.0000.00817.23
8.1.180.0000.00818.10
8.1.170.0080.00018.39
8.1.160.0000.00721.99
8.1.150.0050.00318.85
8.1.140.0040.00417.30
8.1.130.0070.00017.81
8.1.120.0030.00617.43
8.1.110.0020.00517.28
8.1.100.0040.00417.27
8.1.90.0000.00717.38
8.1.80.0040.00417.44
8.1.70.0030.00517.43
8.1.60.0030.00617.46
8.1.50.0000.00817.54
8.1.40.0040.00417.44
8.1.30.0030.00517.51
8.1.20.0060.00317.55
8.1.10.0000.00717.52
8.1.00.0040.00417.33
8.0.300.0050.00318.77
8.0.290.0040.00416.63
8.0.280.0000.00718.29
8.0.270.0000.00717.15
8.0.260.0030.00317.21
8.0.250.0000.00816.80
8.0.240.0030.00516.78
8.0.230.0070.00016.78
8.0.220.0030.00516.84
8.0.210.0040.00416.86
8.0.200.0070.00016.87
8.0.190.0000.00816.79
8.0.180.0000.00716.74
8.0.170.0030.00516.76
8.0.160.0020.00516.81
8.0.150.0000.00816.78
8.0.140.0070.00016.68
8.0.130.0030.00313.26
8.0.120.0000.00716.79
8.0.110.0040.00416.74
8.0.100.0040.00416.86
8.0.90.0040.00416.63
8.0.80.0090.00616.89
8.0.70.0000.00716.72
8.0.60.0040.00416.80
8.0.50.0040.00416.80
8.0.30.0080.01017.06
8.0.20.0130.00717.40
8.0.10.0040.00416.99
8.0.00.0100.00716.80
7.4.330.0020.00215.14
7.4.320.0000.00616.48
7.4.300.0030.00616.53
7.4.290.0030.00316.52
7.4.280.0050.00316.60
7.4.270.0070.00016.46
7.4.260.0000.00816.62
7.4.250.0000.00716.48
7.4.240.0040.00416.54
7.4.230.0030.00316.35
7.4.220.0060.01216.66
7.4.210.0090.00516.45
7.4.200.0030.00316.42
7.4.160.0150.00316.37
7.4.150.0130.00317.40
7.4.140.0120.01117.86
7.4.130.0100.01016.47
7.4.120.0140.00416.46
7.4.110.0150.00316.45
7.4.100.0110.00716.52
7.4.90.0070.01016.50
7.4.80.0060.01219.39
7.4.70.0080.01116.33
7.4.60.0030.01316.38
7.4.50.0000.00816.53
7.4.40.0040.01216.53
7.4.30.0170.00016.55
7.4.00.0060.01114.95
7.3.330.0000.00613.25
7.3.320.0000.00513.18
7.3.310.0040.00416.36
7.3.300.0000.00616.24
7.3.290.0090.00616.36
7.3.280.0120.00616.35
7.3.270.0220.00017.40
7.3.260.0160.00316.54
7.3.250.0090.01216.47
7.3.240.0030.01416.50
7.3.230.0140.01016.41
7.3.210.0090.00916.36
7.3.200.0130.00419.39
7.3.190.0060.00916.46
7.3.180.0110.00416.66
7.3.170.0100.00616.47
7.3.160.0060.00916.34
7.3.120.0060.00914.72
7.3.110.0070.00914.96
7.3.100.0100.00514.75
7.3.90.0080.01014.72
7.3.80.0070.00714.94
7.3.70.0070.00514.84
7.3.60.0060.01014.81
7.3.50.0060.00814.79
7.3.40.0070.00614.80
7.3.30.0060.00814.70
7.3.20.0010.01316.66
7.3.10.0080.00816.59
7.3.00.0050.01116.63
7.2.330.0120.00616.35
7.2.320.0090.00916.64
7.2.310.0060.01116.47
7.2.300.0140.00316.63
7.2.290.0130.01016.56
7.2.250.0090.00814.76
7.2.240.0100.01014.85
7.2.230.0070.00815.05
7.2.220.0080.00814.97
7.2.210.0090.00614.96
7.2.200.0050.01014.89
7.2.190.0090.00614.84
7.2.180.0060.00914.93
7.2.170.0070.00814.95
7.2.160.0070.00715.05
7.2.150.0030.01016.91
7.2.140.0000.01516.61
7.2.130.0090.00916.75
7.2.120.0160.00716.85
7.2.110.0050.01216.75
7.2.100.0140.00616.85
7.2.90.0110.01116.91
7.2.80.0070.00816.75
7.2.70.0120.01016.78
7.2.60.0070.01016.75
7.2.50.0140.00716.54
7.2.40.0130.01016.76
7.2.30.0140.01016.76
7.2.20.0130.00816.64
7.2.10.0110.00816.66
7.2.00.0130.00817.52
7.1.330.0070.00615.74
7.1.320.0070.00915.60
7.1.310.0040.01115.74
7.1.300.0050.00915.63
7.1.290.0030.01115.69
7.1.280.0060.00715.76
7.1.270.0070.00715.66
7.1.260.0100.00615.64
7.1.250.0070.01215.53
7.1.200.0030.00615.89
7.1.100.0030.00818.02
7.1.70.0030.00617.16
7.1.60.0090.01619.48
7.1.50.0060.01916.85
7.1.00.0030.07322.44
7.0.200.0040.00416.62
7.0.60.0100.04319.85
7.0.50.0100.08017.77
7.0.40.0070.05020.23
7.0.30.0270.08320.30
7.0.20.0300.06020.09
7.0.10.0370.07020.21
7.0.00.0070.08320.30
5.6.280.0070.07021.14
5.6.210.0000.04320.46
5.6.200.0030.08318.12
5.6.190.0130.08020.67
5.6.180.3530.04020.42
5.6.170.0170.04020.46
5.6.160.0070.05720.32
5.6.150.0030.04018.15
5.6.140.0070.04718.17
5.6.130.0130.05718.16
5.6.120.0000.06721.01
5.6.110.0130.05720.95
5.6.100.0100.08020.96
5.6.90.0030.05721.09
5.6.80.0030.08720.52
5.6.70.3670.04020.52
5.5.350.0200.03020.42
5.5.340.0030.08317.97
5.5.330.0000.04320.29
5.5.320.0270.07720.21
5.5.310.0230.08020.21
5.5.300.0100.04317.95
5.5.290.0100.07717.98
5.5.280.0070.05020.77
5.5.270.0070.04020.71
5.5.260.0130.06720.95
5.5.250.0070.06720.68
5.5.240.0030.04020.21
5.4.450.1200.06019.26
5.4.440.0470.05719.34
5.4.430.0900.05319.43
5.4.420.0170.05719.14
5.4.410.0130.06019.35
5.4.400.0070.05719.39
5.4.390.0170.04719.16
5.4.380.0130.05319.00
5.4.370.0100.05318.97
5.4.360.0070.05719.26
5.4.350.0170.05019.07
5.4.340.0100.05318.98
5.4.320.0100.05318.91
5.4.310.0030.05719.18
5.4.300.0130.05018.95
5.4.290.0130.05319.05
5.4.280.0070.05718.95
5.4.270.0070.05719.15
5.4.260.0070.05719.25
5.4.250.0100.05719.19
5.4.240.0070.06019.07
5.4.230.0030.06019.14
5.4.220.0100.05719.07
5.4.210.0130.05019.13
5.4.200.0100.05016.51
5.4.190.0100.05019.18
5.4.180.0070.05719.03
5.4.170.0130.05319.19
5.4.160.0270.05319.04
5.4.150.0130.06019.12
5.4.140.0200.05016.36
5.4.130.0130.04716.50
5.4.120.0030.06016.13
5.4.110.0130.04316.18
5.4.100.0070.05716.41
5.4.90.0100.05316.31
5.4.80.0100.05016.25
5.4.70.0130.05016.53
5.4.60.0130.04716.19
5.4.50.0130.04716.53
5.4.40.0100.05316.38
5.4.30.0100.05016.15
5.4.20.0170.06016.38
5.4.10.0130.05316.11
5.4.00.0070.05715.86
5.3.290.0130.05314.55
5.3.280.0030.06014.49
5.3.270.0200.04714.48
5.3.260.0170.04714.58
5.3.250.0070.06014.50
5.3.240.0030.05714.52
5.3.230.0100.05014.45
5.3.220.0230.05314.43
5.3.210.0230.06014.55
5.3.200.0130.06314.44
5.3.190.0030.06014.44
5.3.180.0070.05314.39
5.3.170.0100.05014.50
5.3.160.0130.04714.49
5.3.150.0130.05014.42
5.3.140.0130.04714.34
5.3.130.0130.05314.33
5.3.120.0130.05014.42
5.3.110.0130.05314.56
5.3.100.0070.05313.87
5.3.90.0100.05013.86
5.3.80.0130.04713.86
5.3.70.0100.05014.05
5.3.60.0070.05313.86
5.3.50.0100.05013.82
5.3.40.0030.06313.78
5.3.30.0130.05013.70
5.3.20.0030.06313.61
5.3.10.0030.06313.50
5.3.00.0170.04313.51
5.2.170.0000.05011.04
5.2.160.0030.05711.09
5.2.150.0130.05011.23
5.2.140.0000.05011.04
5.2.130.0030.04310.89
5.2.120.0070.04010.95
5.2.110.0030.04310.93
5.2.100.0200.04011.00
5.2.90.0130.04310.99
5.2.80.0070.04310.93
5.2.70.0030.04310.94
5.2.60.0000.04711.04
5.2.50.0000.05010.85
5.2.40.0070.04010.98
5.2.30.0100.04010.89
5.2.20.0100.03710.79
5.2.10.0100.04010.83
5.2.00.0030.04310.56
5.1.60.0030.03710.07
5.1.50.0130.0279.92
5.1.40.0030.03710.04
5.1.30.0070.03710.31
5.1.20.0070.03710.34
5.1.10.0030.0409.98
5.1.00.0000.0439.96
5.0.50.0030.0308.63
5.0.40.0030.0278.39
5.0.30.0070.0408.31
5.0.20.0070.0278.09
5.0.10.0130.0278.15
5.0.00.0000.0478.25
4.4.90.0030.0235.75
4.4.80.0000.0235.84
4.4.70.0030.0205.86
4.4.60.0070.0235.90
4.4.50.0030.0205.87
4.4.40.0000.0405.84
4.4.30.0000.0235.75
4.4.20.0030.0205.90
4.4.10.0030.0235.96
4.4.00.0070.0305.87
4.3.110.0070.0175.75
4.3.100.0000.0235.70
4.3.90.0030.0205.74
4.3.80.0030.0335.63
4.3.70.0000.0235.64
4.3.60.0070.0235.75
4.3.50.0000.0235.75
4.3.40.0000.0375.74
4.3.30.0030.0204.52
4.3.20.0000.0234.53
4.3.10.0030.0204.45
4.3.00.0070.02015.37

preferences:
54.7 ms | 401 KiB | 5 Q