3v4l.org

run code in 300+ PHP versions simultaneously
<?php class x { public $foo = array(1,2,3); function &retRef() { return $this->foo; } } $x = new x(); $bar = $x->retRef(); $bar[] = 4; var_dump($x->foo, $bar);

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)
8.3.70.0070.00718.30
8.3.60.0070.01418.15
8.3.50.0140.00521.20
8.3.40.0070.00718.65
8.3.30.0070.00720.40
8.3.20.0040.00418.60
8.3.10.0030.00520.93
8.3.00.0000.00723.60
8.2.180.0100.00716.75
8.2.170.0060.00922.96
8.2.160.0070.00720.39
8.2.150.0080.00025.66
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00419.39
8.2.110.0030.00620.41
8.2.100.0090.00317.91
8.2.90.0040.00419.18
8.2.80.0040.00419.28
8.2.70.0060.00317.63
8.2.60.0060.00317.90
8.2.50.0050.00518.07
8.2.40.0040.00419.95
8.2.30.0000.00719.43
8.2.20.0000.00817.57
8.2.10.0050.00317.55
8.2.00.0030.00617.56
8.1.280.0070.01025.92
8.1.270.0040.00423.99
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0090.00022.42
8.1.230.0080.00421.10
8.1.220.0000.00818.77
8.1.210.0040.00818.77
8.1.200.0100.00017.13
8.1.190.0030.00517.50
8.1.180.0000.00818.10
8.1.170.0000.00818.52
8.1.160.0070.00018.82
8.1.150.0040.00418.55
8.1.140.0040.00417.30
8.1.130.0070.00017.80
8.1.120.0030.00317.43
8.1.110.0000.00817.27
8.1.100.0000.00817.27
8.1.90.0040.00417.29
8.1.80.0040.00417.35
8.1.70.0000.00717.23
8.1.60.0000.00817.59
8.1.50.0000.00717.46
8.1.40.0040.00417.48
8.1.30.0080.00017.64
8.1.20.0000.00817.69
8.1.10.0000.00817.40
8.1.00.0070.00417.45
8.0.300.0040.00419.90
8.0.290.0000.00816.92
8.0.280.0000.00718.37
8.0.270.0000.00717.25
8.0.260.0070.00016.79
8.0.250.0000.00816.80
8.0.240.0040.00416.88
8.0.230.0070.00016.92
8.0.220.0040.00416.73
8.0.210.0050.00316.81
8.0.200.0030.00316.89
8.0.190.0030.00616.90
8.0.180.0000.00816.72
8.0.170.0040.00416.70
8.0.160.0030.00316.74
8.0.150.0040.00416.69
8.0.140.0070.00016.81
8.0.130.0060.00013.28
8.0.120.0040.00416.70
8.0.110.0000.00716.88
8.0.100.0070.00016.86
8.0.90.0070.00016.76
8.0.80.0090.00616.70
8.0.70.0050.00316.65
8.0.60.0040.00416.69
8.0.50.0040.00416.60
8.0.30.0080.01016.96
8.0.20.0060.01217.40
8.0.10.0030.00516.83
8.0.00.0100.01016.64
7.4.330.0000.00515.00
7.4.320.0030.00316.53
7.4.300.0000.00616.60
7.4.290.0030.00316.64
7.4.280.0070.00016.59
7.4.270.0030.00516.51
7.4.260.0000.00513.16
7.4.250.0000.00816.56
7.4.240.0000.00916.55
7.4.230.0000.00716.29
7.4.220.0130.01016.54
7.4.210.0080.00816.49
7.4.200.0030.00316.59
7.4.190.0070.00016.70
7.4.160.0080.00816.45
7.4.150.0130.00417.40
7.4.140.0120.00617.86
7.4.130.0090.00716.39
7.4.120.0050.01216.38
7.4.110.0140.00316.39
7.4.100.0100.00716.46
7.4.90.0120.00616.42
7.4.80.0120.00619.39
7.4.70.0090.00716.46
7.4.60.0130.00316.43
7.4.50.0040.00416.45
7.4.40.0140.00022.77
7.4.30.0140.00316.39
7.4.00.0000.01414.86
7.3.330.0030.00313.07
7.3.320.0000.00613.06
7.3.310.0030.00316.16
7.3.300.0040.00416.24
7.3.290.0050.00916.21
7.3.280.0050.00916.28
7.3.270.0120.00617.40
7.3.260.0110.00918.24
7.3.250.0110.00616.57
7.3.240.0130.00616.28
7.3.230.0030.01416.39
7.3.210.0090.00916.39
7.3.200.0110.00819.39
7.3.190.0130.00416.59
7.3.180.0100.00716.46
7.3.170.0080.00816.61
7.3.160.0160.00016.34
7.3.120.0060.01014.93
7.3.10.0070.00716.47
7.3.00.0100.00316.29
7.2.330.0150.00316.64
7.2.320.0120.00916.73
7.2.310.0060.01616.75
7.2.300.0030.01316.55
7.2.290.0030.01316.30
7.2.130.0070.01016.82
7.2.120.0060.00616.96
7.2.110.0060.00816.95
7.2.100.0060.00616.74
7.2.90.0030.00916.84
7.2.80.0120.00316.79
7.2.70.0060.00916.77
7.2.60.0070.00317.01
7.2.50.0130.00316.96
7.2.40.0050.00516.94
7.2.30.0060.00916.88
7.2.20.0140.00316.92
7.2.10.0070.00716.82
7.2.00.0030.01018.06
7.1.250.0150.00015.69
7.1.240.0060.00815.57
7.1.230.0060.00615.55
7.1.220.0000.01015.86
7.1.210.0030.00715.78
7.1.200.0040.00815.91
7.1.190.0040.01115.80
7.1.180.0070.00715.70
7.1.170.0030.00615.71
7.1.160.0030.00915.90
7.1.150.0060.00615.54
7.1.140.0100.00715.47
7.1.130.0070.00715.78
7.1.120.0030.01015.89
7.1.110.0060.00615.70
7.1.100.0060.00616.98
7.1.90.0030.00915.50
7.1.80.0000.00915.71
7.1.70.0090.00516.39
7.1.60.0070.01017.46
7.1.50.0170.00825.34
7.1.40.0060.00915.73
7.1.30.0030.01015.83
7.1.20.0030.00715.75
7.1.10.0080.00615.73
7.1.00.0020.02119.00
7.0.330.0000.01415.36
7.0.320.0100.00315.23
7.0.310.0060.01015.42
7.0.300.0070.00715.32
7.0.290.0040.00815.33
7.0.280.0060.00315.21
7.0.270.0000.00815.31
7.0.260.0080.00415.45
7.0.250.0140.00015.58
7.0.240.0060.00615.28
7.0.230.0040.00715.42
7.0.220.0030.00615.36
7.0.210.0120.00015.42
7.0.200.0040.00616.08
7.0.190.0050.00515.32
7.0.180.0060.00615.30
7.0.170.0090.00315.51
7.0.160.0070.00715.51
7.0.150.0100.00715.54
7.0.140.0030.04118.75
7.0.130.0030.00615.53
7.0.120.0000.01215.43
7.0.110.0030.01015.49
7.0.100.0090.04117.63
7.0.90.0090.02317.72
7.0.80.0100.02417.68
7.0.70.0050.04717.75
7.0.60.0030.05017.71
7.0.50.0070.04717.89
7.0.40.0100.04216.71
7.0.30.0050.04516.78
7.0.20.0070.04716.66
7.0.10.0040.04416.84
7.0.00.0170.03516.69
5.6.380.0070.00714.30
5.6.370.0030.01014.63
5.6.360.0070.00714.41
5.6.350.0000.01514.42
5.6.340.0070.01014.67
5.6.330.0060.00614.38
5.6.320.0040.01114.34
5.6.310.0110.00014.29
5.6.300.0040.00414.65
5.6.290.0060.00614.10
5.6.280.0120.03317.77
5.6.270.0070.01014.27
5.6.260.0040.00714.36
5.6.250.0060.04317.61
5.6.240.0030.04517.57
5.6.230.0110.04317.45
5.6.220.0070.04017.38
5.6.210.0070.04317.44
5.6.200.0070.04517.69
5.6.190.0100.03517.69
5.6.180.0090.04717.69
5.6.170.0120.03517.78
5.6.160.0100.03917.80
5.6.150.0020.03417.48
5.6.140.0060.04317.70
5.6.130.0090.03417.69
5.6.120.0070.04317.77
5.6.110.0100.03517.80
5.6.100.0120.04217.92
5.6.90.0080.04117.71
5.6.80.0070.03917.37
5.6.70.0050.04517.37
5.6.60.0100.03817.33
5.6.50.0080.03817.53
5.6.40.0100.03417.24
5.6.30.0120.03017.37
5.6.20.0050.04417.39
5.6.10.0050.04817.33
5.6.00.0110.04217.32
5.5.380.0100.03515.77
5.5.370.0070.04015.80
5.5.360.0070.04515.93
5.5.350.0050.04215.77
5.5.340.0100.04016.11
5.5.330.0100.04015.98
5.5.320.0060.04515.79
5.5.310.0080.03516.01
5.5.300.0050.04316.13
5.5.290.0070.02716.11
5.5.280.0060.04116.16
5.5.270.0030.04716.09
5.5.260.0150.03816.13
5.5.250.0070.04115.74
5.5.240.0080.04115.61
5.5.230.0080.04215.59
5.5.220.0030.03515.63
5.5.210.0050.04315.72
5.5.200.0100.03315.72
5.5.190.0050.03915.72
5.5.180.0050.04215.51
5.5.170.0030.01010.98
5.5.160.0080.04115.60
5.5.150.0050.04315.51
5.5.140.0070.04715.71
5.5.130.0020.04515.62
5.5.120.0030.03315.71
5.5.110.0050.03515.72
5.5.100.0120.03815.66
5.5.90.0050.04115.56
5.5.80.0070.04215.41
5.5.70.0160.03315.43
5.5.60.0050.04215.70
5.5.50.0050.03515.60
5.5.40.0100.03715.66
5.5.30.0020.04715.63
5.5.20.0070.04215.51
5.5.10.0100.04015.70
5.5.00.0080.03815.56
5.4.450.0130.03515.20
5.4.440.0050.04515.31
5.4.430.0030.04515.37
5.4.420.0050.03915.29
5.4.410.0130.03315.14
5.4.400.0030.03815.10
5.4.390.0050.04114.84
5.4.380.0050.03715.13
5.4.370.0100.03515.12
5.4.360.0050.04315.04
5.4.350.0030.04515.12
5.4.340.0030.04514.93
5.4.330.0030.00310.97
5.4.320.0050.04315.11
5.4.310.0070.03814.95
5.4.300.0070.04015.08
5.4.290.0000.04214.83
5.4.280.0070.04014.97
5.4.270.0050.03215.17
5.4.260.0050.04115.07
5.4.250.0090.03814.94
5.4.240.0030.04015.01
5.4.230.0070.03015.02
5.4.220.0080.03714.95
5.4.210.0080.04214.97
5.4.200.0070.03215.01
5.4.190.0070.02514.88
5.4.180.0020.02815.00
5.4.170.0080.03314.84
5.4.160.0070.04015.13
5.4.150.0040.04415.18
5.4.140.0080.03213.69
5.4.130.0100.03513.51
5.4.120.0120.03213.57
5.4.110.0050.04013.67
5.4.100.0030.04213.69
5.4.90.0030.03613.65
5.4.80.0050.02513.68
5.4.70.0020.03913.78
5.4.60.0030.03213.67
5.4.50.0040.03913.69
5.4.40.0050.04013.56
5.4.30.0080.03813.51
5.4.20.0050.03713.59
5.4.10.0020.04413.59
5.4.00.0130.03013.59
5.3.290.0050.04312.59
5.3.280.0060.02612.46
5.3.270.0050.03612.63
5.3.260.0050.04012.62
5.3.250.0030.04612.65
5.3.240.0030.04212.39
5.3.230.0080.04012.60
5.3.220.0070.03912.48
5.3.210.0030.04212.50
5.3.200.0030.03912.56
5.3.190.0050.04212.62
5.3.180.0050.03912.53
5.3.170.0020.02812.59
5.3.160.0060.03212.70
5.3.150.0070.03712.62
5.3.140.0070.03912.61
5.3.130.0090.02812.61
5.3.120.0050.04212.67
5.3.110.0050.02912.66
5.3.100.0070.04012.36
5.3.90.0030.04112.35
5.3.80.0050.04312.14
5.3.70.0040.04112.18
5.3.60.0070.03512.15
5.3.50.0070.03812.30
5.3.40.0050.04012.12
5.3.30.0030.04112.26
5.3.20.0070.03712.11
5.3.10.0080.03812.03
5.3.00.0070.03911.90
5.2.170.0080.02710.41
5.2.160.0050.03310.39
5.2.150.0110.02710.47
5.2.140.0020.03710.28
5.2.130.0050.03210.30
5.2.120.0030.02510.25
5.2.110.0020.03710.27
5.2.100.0020.03310.37
5.2.90.0070.02910.32
5.2.80.0050.03310.28
5.2.70.0060.02810.29
5.2.60.0070.01610.01
5.2.50.0050.03510.27
5.2.40.0040.03010.22
5.2.30.0050.02410.23
5.2.20.0050.0269.99
5.2.10.0040.01910.06
5.2.00.0070.02810.08
5.1.60.0080.0259.44
5.1.50.0020.0319.43
5.1.40.0010.0289.41
5.1.30.0050.0329.58
5.1.20.0030.0319.61
5.1.10.0080.0229.41
5.1.00.0050.0279.41
5.0.50.0020.0258.65
5.0.40.0040.0178.63
5.0.30.0000.0328.62
5.0.20.0000.0198.62
5.0.10.0100.0138.62
5.0.00.0020.0358.62
4.4.90.0050.0178.62
4.4.80.0050.0138.62
4.4.70.0020.0168.62
4.4.60.0020.0138.62
4.4.50.0050.0188.62
4.4.40.0000.0308.62
4.4.30.0010.0218.62
4.4.20.0000.0208.62
4.4.10.0030.0178.62
4.4.00.0020.0288.62
4.3.110.0000.0208.62
4.3.100.0020.0188.62
4.3.90.0000.0228.62
4.3.80.0020.0248.62
4.3.70.0020.0188.62
4.3.60.0070.0158.62
4.3.50.0000.0238.62
4.3.40.0030.0258.62
4.3.30.0020.0188.62
4.3.20.0010.0208.62
4.3.10.0000.0228.62
4.3.00.0010.0188.62

preferences:
37.51 ms | 401 KiB | 5 Q