3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'foo'; $array = [&$a]; var_dump($array);

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)
8.3.40.0110.00418.84
8.3.30.0110.00418.79
8.3.20.0040.00420.25
8.3.10.0000.00722.04
8.3.00.0060.00322.40
8.2.170.0100.01022.96
8.2.160.0130.00020.39
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0080.00026.16
8.2.120.0050.00319.77
8.2.110.0030.00622.19
8.2.100.0070.00719.38
8.2.90.0000.00819.05
8.2.80.0080.00017.97
8.2.70.0060.00317.63
8.2.60.0040.00418.03
8.2.50.0000.00818.07
8.2.40.0050.00318.03
8.2.30.0000.00718.09
8.2.20.0040.00417.66
8.2.10.0050.00217.75
8.2.00.0000.00817.63
8.1.270.0040.00420.27
8.1.260.0000.00726.35
8.1.250.0080.00028.09
8.1.240.0060.00323.91
8.1.230.0110.00019.10
8.1.220.0020.00517.74
8.1.210.0040.00418.77
8.1.200.0040.00417.13
8.1.190.0080.00017.30
8.1.180.0040.00418.38
8.1.170.0030.00518.57
8.1.160.0050.00322.17
8.1.150.0070.00318.62
8.1.140.0000.00717.41
8.1.130.0000.00717.81
8.1.120.0040.00417.39
8.1.110.0000.00717.33
8.1.100.0040.00417.34
8.1.90.0000.00817.45
8.1.80.0070.00017.48
8.1.70.0030.00317.36
8.1.60.0030.00617.45
8.1.50.0000.00717.52
8.1.40.0000.00717.52
8.1.30.0040.00417.63
8.1.20.0040.00417.59
8.1.10.0040.00417.52
8.1.00.0040.00417.46
8.0.300.0070.00018.77
8.0.290.0080.00016.91
8.0.280.0000.00718.43
8.0.270.0000.00717.16
8.0.260.0040.00416.76
8.0.250.0040.00416.98
8.0.240.0080.00016.94
8.0.230.0070.00016.91
8.0.220.0000.00716.85
8.0.210.0080.00016.87
8.0.200.0050.00316.93
8.0.190.0000.00716.91
8.0.180.0120.00016.90
8.0.170.0040.00416.88
8.0.160.0070.00016.76
8.0.150.0040.00416.89
8.0.140.0070.00016.89
8.0.130.0030.00313.28
8.0.120.0000.00716.84
8.0.110.0040.00416.79
8.0.100.0060.00316.89
8.0.90.0000.00816.99
8.0.80.0060.00916.94
8.0.70.0030.00316.77
8.0.60.0040.00417.00
8.0.50.0040.00416.73
8.0.30.0070.01217.08
8.0.20.0110.00717.40
8.0.10.0040.00416.97
8.0.00.0130.00516.83
7.4.330.0000.00515.00
7.4.320.0030.00316.43
7.4.300.0030.00316.50
7.4.290.0030.00316.56
7.4.280.0070.00016.38
7.4.270.0000.00716.49
7.4.260.0060.00316.52
7.4.250.0070.00016.41
7.4.240.0040.00416.52
7.4.230.0040.00416.69
7.4.220.0100.01716.50
7.4.210.0080.00916.43
7.4.200.0040.00416.57
7.4.190.0030.00316.55
7.4.160.0070.00716.27
7.4.150.0030.01417.40
7.4.140.0120.00817.86
7.4.130.0080.01216.35
7.4.120.0060.01116.45
7.4.110.0070.01016.46
7.4.100.0130.00316.55
7.4.90.0150.00416.34
7.4.80.0190.00319.39
7.4.70.0120.00616.46
7.4.60.0110.01216.40
7.4.50.0000.00816.37
7.4.40.0100.00522.77
7.4.30.0090.00616.52
7.4.10.0040.01516.09
7.4.00.0080.00715.31
7.3.330.0050.00012.94
7.3.320.0060.00013.02
7.3.310.0000.00816.25
7.3.300.0070.00016.20
7.3.290.0030.01216.29
7.3.280.0110.00516.21
7.3.270.0120.00917.40
7.3.260.0130.00616.44
7.3.250.0080.00916.23
7.3.240.0070.01016.21
7.3.230.0270.00416.39
7.3.210.0060.00916.07
7.3.200.0120.00619.39
7.3.190.0130.01016.17
7.3.180.0080.00816.20
7.3.170.0000.02116.30
7.3.160.0090.00616.27
7.3.130.0060.00916.41
7.3.120.0080.00915.02
7.3.110.0040.01015.11
7.3.100.0050.01015.11
7.3.90.0080.00315.18
7.3.80.0040.00915.19
7.3.70.0070.01015.09
7.3.60.0060.00715.19
7.3.50.0010.01015.19
7.3.40.0090.00415.02
7.3.30.0030.01115.10
7.3.20.0070.00917.10
7.3.10.0110.00616.80
7.3.00.0070.00816.83
7.2.330.0100.00716.59
7.2.320.0220.00316.63
7.2.310.0090.01416.30
7.2.300.0070.01016.25
7.2.290.0030.01416.38
7.2.260.0040.01516.54
7.2.250.0070.01115.33
7.2.240.0050.01115.51
7.2.230.0060.00915.36
7.2.220.0070.00415.39
7.2.210.0080.00415.23
7.2.200.0090.00715.32
7.2.190.0060.00915.30
7.2.180.0070.00715.45
7.2.170.0030.01215.33
7.2.160.0130.01016.45
7.2.150.0030.01418.20
7.2.140.0080.01218.19
7.2.130.0110.00217.13
7.2.120.0090.00917.05
7.2.110.0070.01017.08
7.2.100.0060.01017.06
7.2.90.0110.00817.11
7.2.80.0100.00817.21
7.2.70.0050.01117.09
7.2.60.0070.00617.08
7.2.50.0070.00817.19
7.2.40.0080.00617.22
7.2.30.0050.00817.16
7.2.20.0070.00717.13
7.2.10.0070.00817.05
7.2.00.0080.00717.52
7.1.330.0040.01216.19
7.1.320.0110.00316.15
7.1.310.0070.00616.32
7.1.300.0030.01116.20
7.1.290.0110.00516.27
7.1.280.0070.00816.24
7.1.270.0020.01316.18
7.1.260.0060.00816.30
7.1.250.0080.00616.17
7.1.240.0060.00816.32
7.1.230.0080.00716.27
7.1.220.0090.01016.23
7.1.210.0100.00916.20
7.1.200.0070.00816.17
7.1.190.0060.00916.12
7.1.180.0070.00916.27
7.1.170.0090.00716.07
7.1.160.0080.00616.20
7.1.150.0080.00616.34
7.1.140.0100.00216.17
7.1.130.0080.00716.18
7.1.120.0080.00916.24
7.1.110.0080.00816.29
7.1.100.0070.00716.66
7.1.90.0040.01116.34
7.1.80.0070.00516.16
7.1.70.0070.00416.50
7.1.60.0090.00717.08
7.1.50.0090.00816.35
7.1.40.0050.00816.27
7.1.30.0090.00516.27
7.1.20.0070.00716.27
7.1.10.0050.01016.20
7.1.00.0060.01417.80
7.0.330.0080.00915.77
7.0.320.0050.00915.86
7.0.310.0060.00715.77
7.0.300.0070.00815.85
7.0.290.0080.00615.79
7.0.280.0080.00815.77
7.0.270.0070.00615.72
7.0.260.0090.00315.81
7.0.250.0040.01015.83
7.0.240.0040.01115.91
7.0.230.0070.00615.78
7.0.220.0080.00415.89
7.0.210.0080.00715.75
7.0.200.0050.00716.09
7.0.190.0060.00815.92
7.0.180.0070.00815.74
7.0.170.0080.00715.88
7.0.160.0070.00515.72
7.0.150.0060.00715.86
7.0.140.0090.02117.28
7.0.130.0050.00915.91
7.0.120.0070.00515.72
7.0.110.0090.00515.84
7.0.100.0080.00615.88
7.0.90.0060.00815.72
7.0.80.0070.00615.80
7.0.70.1270.01616.90
7.0.60.0050.02716.87
7.0.50.0080.01916.24
7.0.40.0080.01415.23
7.0.30.0040.01715.38
7.0.20.0110.02215.28
7.0.10.0130.02615.35
7.0.00.0030.02615.32
5.6.400.0030.00915.82
5.6.390.0060.00915.68
5.6.380.0110.00514.68
5.6.370.0050.00814.67
5.6.360.0040.01114.74
5.6.350.0080.00414.60
5.6.340.0080.00514.91
5.6.330.0030.01214.86
5.6.320.0020.00914.71
5.6.310.0060.00514.60
5.6.300.0060.00714.86
5.6.290.0070.00614.58
5.6.280.0070.02316.30
5.6.270.0060.00814.67
5.6.260.0060.00814.70
5.6.250.0070.00914.60
5.6.240.0080.00514.42
5.6.230.0060.00714.55
5.6.220.0020.01114.60
5.6.210.0100.02516.11
5.6.200.0100.01615.42
5.6.190.0090.02315.94
5.6.180.0100.02716.10
5.6.170.0120.02116.06
5.6.160.0080.02515.99
5.6.150.0070.02715.44
5.6.140.0070.01415.61
5.6.130.0050.02615.61
5.6.120.0050.01716.14
5.6.110.0040.01816.28
5.6.100.0090.02316.31
5.6.90.0060.02516.14
5.6.80.0070.02116.04
5.6.70.0090.01915.96
5.6.60.0050.01014.53
5.6.50.0080.00814.51
5.6.40.0080.00814.64
5.6.30.0060.00814.59
5.6.20.0020.00914.51
5.6.10.0050.00814.55
5.6.00.0090.00314.53
5.5.380.0070.00812.29
5.5.370.0080.00612.37
5.5.360.0070.00512.48
5.5.350.0050.01514.50
5.5.340.0080.02313.81
5.5.330.0090.01014.42
5.5.320.0030.03014.30
5.5.310.0100.02514.54
5.5.300.0060.02413.86
5.5.290.0070.02213.82
5.5.280.0030.02014.59
5.5.270.0050.02014.49
5.5.260.0100.02214.53
5.5.250.0070.02414.42
5.5.240.0060.02414.44
5.5.230.0040.00812.31
5.5.220.0070.00512.28
5.5.210.0030.00712.29
5.5.200.0050.00712.23
5.5.190.0070.00512.29
5.5.180.0080.00512.19
5.5.170.0070.00512.35
5.5.160.0060.00612.34
5.5.150.0080.00112.26
5.5.140.0070.00312.23
5.5.130.0050.00612.49
5.5.120.0070.00512.36
5.5.110.0050.00512.39
5.5.100.0070.00512.47
5.5.90.0040.00712.42
5.5.80.0040.00712.36
5.5.70.0040.00712.49
5.5.60.0070.00512.18
5.5.50.0020.00712.55
5.5.40.0080.00512.42
5.5.30.0090.00312.50
5.5.20.0040.00512.46
5.5.10.0040.00712.33
5.5.00.0070.00312.52
5.4.450.0620.01313.45
5.4.440.0640.01413.34
5.4.430.0630.01613.31
5.4.420.0620.01413.18
5.4.410.0660.01213.40
5.4.400.0620.01313.32
5.4.390.0680.01513.31
5.4.380.0680.01613.18
5.4.370.0630.01313.20
5.4.360.0680.01513.04
5.4.350.0680.01413.12
5.4.340.0680.01513.19
5.4.330.0030.01011.25
5.4.320.0740.01013.18
5.4.310.0620.01313.21
5.4.300.0660.01513.29
5.4.290.0670.01513.16
5.4.280.0690.01313.08
5.4.270.0670.01513.21
5.4.260.0680.01313.13
5.4.250.0680.01413.17
5.4.240.0690.01213.23
5.4.230.0630.01313.17
5.4.220.0620.01313.10
5.4.210.0710.01313.14
5.4.200.0670.01113.38
5.4.190.0700.00913.28
5.4.180.0700.01113.09
5.4.170.0610.01313.30
5.4.160.0660.01313.16
5.4.150.0680.01613.13
5.4.140.0640.01312.47
5.4.130.0740.01212.61
5.4.120.0820.01312.54
5.4.110.0880.01112.45
5.4.100.0720.01512.55
5.4.90.0760.01212.52
5.4.80.0820.01212.50
5.4.70.0700.01612.45
5.4.60.0810.01412.48
5.4.50.0830.01512.39
5.4.40.0800.01312.51
5.4.30.0810.01412.60
5.4.20.0830.01312.59
5.4.10.0700.01512.54
5.4.00.0640.01512.39
5.3.290.0640.01512.01
5.3.280.0680.01511.90
5.3.270.0700.01311.90
5.3.260.0620.01411.98
5.3.250.0620.01311.85
5.3.240.0680.01411.82
5.3.230.0630.01311.85
5.3.220.0680.01611.83
5.3.210.0670.01711.87
5.3.200.0610.01411.86
5.3.190.0690.01211.86
5.3.180.0680.01311.93
5.3.170.0650.01011.91
5.3.160.0690.01411.97
5.3.150.0680.01411.96
5.3.140.0670.01611.95
5.3.130.0690.01411.87
5.3.120.0680.01511.98
5.3.110.0670.01511.96
5.3.100.0630.01311.88
5.3.90.0680.01311.79
5.3.80.0660.01311.73
5.3.70.0720.01111.71
5.3.60.0660.01311.83
5.3.50.0670.01411.68
5.3.40.0610.01211.78
5.3.30.0680.01211.67
5.3.20.0680.01211.63
5.3.10.0560.01111.58
5.3.00.0670.01411.54
5.2.170.0740.01510.22
5.2.160.0660.01410.29
5.2.150.0730.01410.29
5.2.140.0720.01610.11
5.2.130.0770.01210.05
5.2.120.0700.01310.06
5.2.110.0710.01310.19
5.2.100.0730.01410.22
5.2.90.0680.01210.22
5.2.80.0710.01310.14
5.2.70.0680.01310.19
5.2.60.0710.00910.02
5.2.50.0740.01310.22
5.2.40.0600.01310.00
5.2.30.0550.01410.19
5.2.20.0600.01510.09
5.2.10.0640.01010.05
5.2.00.0610.0149.90
5.1.60.0630.0109.46
5.1.50.0590.0109.54
5.1.40.0610.0119.56
5.1.30.0640.0119.74
5.1.20.0520.0149.68
5.1.10.0540.0099.50
5.1.00.0610.0119.48
5.0.50.0310.0079.30
5.0.40.0380.0089.30
5.0.30.0340.0169.30
5.0.20.0370.0099.30
5.0.10.0410.0109.30
5.0.00.0440.0149.30
4.4.90.0400.0129.30
4.4.80.0380.0079.30
4.4.70.0430.0089.30
4.4.60.0370.0109.30
4.4.50.0360.0089.30
4.4.40.0390.0159.30
4.4.30.0220.0109.30
4.4.20.0370.0089.30
4.4.10.0270.0079.30
4.4.00.0320.0109.30
4.3.110.0330.0119.30
4.3.100.0350.0059.30
4.3.90.0310.0099.30
4.3.80.0340.0139.30
4.3.70.0340.0109.30
4.3.60.0300.0079.30
4.3.50.0310.0089.30
4.3.40.0260.0119.30
4.3.30.0120.0109.30
4.3.20.0130.0089.30
4.3.10.0130.0099.30
4.3.00.0190.0119.30

preferences:
40.51 ms | 400 KiB | 5 Q