3v4l.org

run code in 300+ PHP versions simultaneously
<?php $i = 0; $dynamic3var = "var3"; $dynamic7var = "var7"; while($i < 10) { if(isset(${'dynamic'.$i.'var'})) { echo ${'dynamic'.$i.'var'}; } $i++; } ?>

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)
8.3.60.0140.00318.30
8.3.50.0070.01021.02
8.3.40.0120.00318.80
8.3.30.0030.01020.20
8.3.20.0050.00320.35
8.3.10.0040.00422.09
8.3.00.0070.00022.37
8.2.180.0120.00916.32
8.2.170.0090.00622.96
8.2.160.0100.00322.08
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0000.00819.36
8.2.110.0060.00320.52
8.2.100.0070.00417.71
8.2.90.0050.00219.13
8.2.80.0060.00319.25
8.2.70.0060.00317.50
8.2.60.0080.00017.93
8.2.50.0000.00918.07
8.2.40.0040.00418.28
8.2.30.0040.00718.04
8.2.20.0080.00017.54
8.2.10.0000.00817.69
8.2.00.0080.00017.59
8.1.280.0100.00325.92
8.1.270.0000.00724.66
8.1.260.0030.00526.35
8.1.250.0000.00728.09
8.1.240.0030.00720.63
8.1.230.0090.00322.82
8.1.220.0050.00317.79
8.1.210.0040.00418.77
8.1.200.0090.00017.35
8.1.190.0040.00417.30
8.1.180.0000.00819.01
8.1.170.0090.00018.52
8.1.160.0040.00420.89
8.1.150.0000.00718.64
8.1.140.0040.00417.36
8.1.130.0000.00717.45
8.1.120.0040.00417.31
8.1.110.0030.00417.50
8.1.100.0070.00017.53
8.1.90.0030.00617.52
8.1.80.0040.00417.34
8.1.70.0000.00717.39
8.1.60.0050.00317.47
8.1.50.0000.00717.57
8.1.40.0030.00617.55
8.1.30.0000.00817.52
8.1.20.0030.00517.58
8.1.10.0000.00717.50
8.1.00.0040.00417.35
8.0.300.0080.00018.77
8.0.290.0000.00717.05
8.0.280.0040.00418.38
8.0.270.0040.00417.27
8.0.260.0000.00616.73
8.0.250.0060.00016.94
8.0.240.0040.00416.98
8.0.230.0040.00416.94
8.0.220.0000.00716.88
8.0.210.0040.00416.88
8.0.200.0070.00016.94
8.0.190.0030.00617.00
8.0.180.0040.00416.79
8.0.170.0000.00716.93
8.0.160.0030.00316.93
8.0.150.0050.00316.80
8.0.140.0000.00716.84
8.0.130.0000.00513.28
8.0.120.0030.00616.82
8.0.110.0040.00416.73
8.0.100.0000.00716.68
8.0.90.0040.00416.90
8.0.80.0000.01516.88
8.0.70.0070.00016.90
8.0.60.0000.00816.79
8.0.50.0040.00416.80
8.0.30.0110.00917.05
8.0.20.0100.00817.40
8.0.10.0040.00416.89
8.0.00.0140.00916.74
7.4.330.0030.00315.00
7.4.320.0060.00016.66
7.4.300.0000.00616.61
7.4.290.0030.00616.59
7.4.280.0000.00716.51
7.4.270.0090.00016.56
7.4.260.0060.00013.29
7.4.250.0040.00416.42
7.4.240.0040.00416.63
7.4.230.0000.00716.68
7.4.220.0120.00616.60
7.4.210.0070.00816.66
7.4.200.0070.00016.57
7.4.190.0070.00016.58
7.4.160.0040.01216.57
7.4.150.0090.01217.40
7.4.140.0120.00417.86
7.4.130.0130.00816.55
7.4.120.0030.01316.54
7.4.110.0060.01116.64
7.4.100.0070.01016.55
7.4.90.0070.01016.45
7.4.80.0170.00619.39
7.4.70.0080.00816.38
7.4.60.0060.01016.47
7.4.50.0030.00516.23
7.4.40.0090.00622.77
7.4.30.0080.00816.59
7.4.10.0100.01015.32
7.4.00.0080.00815.16
7.3.330.0000.00613.11
7.3.320.0000.00513.11
7.3.310.0030.00316.22
7.3.300.0080.00016.31
7.3.290.0120.00316.32
7.3.280.0100.00716.25
7.3.270.0030.01317.40
7.3.260.0130.00416.47
7.3.250.0110.00716.42
7.3.240.0130.00316.36
7.3.230.0050.01116.49
7.3.210.0030.01416.31
7.3.200.0120.00616.55
7.3.190.0090.00816.53
7.3.180.0100.00716.23
7.3.170.0100.00616.55
7.3.160.0030.01316.25
7.3.130.0090.00915.32
7.3.120.0050.01115.17
7.3.110.0100.01015.32
7.3.100.0060.00915.32
7.3.90.0070.01015.32
7.3.80.0000.00915.32
7.3.70.0030.01015.32
7.3.60.0040.00415.32
7.3.50.0060.00615.32
7.3.40.0040.00415.32
7.3.30.0030.01015.32
7.3.20.0080.00416.61
7.3.10.0030.00916.64
7.3.00.0000.01316.54
7.2.330.0120.00616.73
7.2.320.0070.01716.59
7.2.310.0120.00916.61
7.2.300.0140.00616.36
7.2.290.0140.00316.82
7.2.260.0070.01315.32
7.2.250.0070.01115.32
7.2.240.0040.01115.32
7.2.230.0090.00915.32
7.2.220.0030.01315.32
7.2.210.0060.00915.32
7.2.200.0040.00815.32
7.2.190.0060.00315.32
7.2.180.0000.01215.32
7.2.170.0040.00815.32
7.2.160.0030.01015.32
7.2.150.0110.00016.99
7.2.140.0030.00616.90
7.2.130.0110.00017.04
7.2.120.0080.00617.03
7.2.110.0000.01317.15
7.2.100.0040.01117.04
7.2.90.0030.00817.07
7.2.80.0060.00316.77
7.2.70.0120.00316.85
7.2.60.0080.00416.93
7.2.50.0070.00716.62
7.2.40.0000.01817.19
7.2.30.0090.00917.16
7.2.20.0000.01616.88
7.2.10.0060.01017.00
7.2.00.0090.00616.91
7.1.330.0040.01115.95
7.1.320.0000.01315.69
7.1.310.0100.00015.77
7.1.300.0040.01115.91
7.1.290.0070.00715.60
7.1.280.0040.00715.93
7.1.270.0110.00015.77
7.1.260.0070.00715.62
7.1.250.0060.00315.74
7.1.240.0000.00815.53
7.1.230.0050.00515.76
7.1.220.0000.01415.90
7.1.210.0030.00915.67
7.1.200.0020.01015.85
7.1.190.0000.01215.73
7.1.180.0000.01215.77
7.1.170.0130.00015.76
7.1.160.0100.00715.99
7.1.150.0000.01215.55
7.1.140.0070.00415.77
7.1.130.0100.00315.89
7.1.120.0070.00415.75
7.1.110.0040.00415.83
7.1.100.0050.00617.10
7.1.90.0040.01115.65
7.1.80.0030.01115.94
7.1.70.0030.00716.31
7.1.60.0030.01417.54
7.1.50.0080.01016.44
7.1.40.0100.00315.50
7.1.30.0100.00315.65
7.1.20.0100.00315.92
7.1.10.0060.00315.69
7.1.00.0070.02519.03
7.0.330.0030.00615.35
7.0.320.0100.00015.44
7.0.310.0030.01015.32
7.0.300.0100.00615.48
7.0.290.0080.00815.53
7.0.280.0110.00015.37
7.0.270.0060.00615.51
7.0.260.0040.00715.52
7.0.250.0030.00615.55
7.0.240.0030.01015.32
7.0.230.0040.00715.36
7.0.220.0000.01115.58
7.0.210.0060.01015.55
7.0.200.0110.00615.08
7.0.190.0090.00015.46
7.0.180.0050.00315.32
7.0.170.0030.00615.46
7.0.160.0030.00915.33
7.0.150.0060.00615.44
7.0.140.0030.04218.71
7.0.130.0060.01015.65
7.0.120.0070.00715.47
7.0.110.0060.00915.54
7.0.100.0070.02517.77
7.0.90.0090.02217.69
7.0.80.0020.02417.74
7.0.70.0050.02517.65
7.0.60.0050.04417.76
7.0.50.0030.02817.78
7.0.40.0080.02217.70
7.0.30.0050.02517.68
7.0.20.0040.02417.72
7.0.10.0050.02517.72
7.0.00.0050.02217.70
5.6.400.0100.00615.32
5.6.390.0000.01215.32
5.6.380.0030.01215.32
5.6.370.0100.00315.32
5.6.360.0060.01015.32
5.6.350.0030.01215.32
5.6.340.0030.01015.32
5.6.330.0030.01415.32
5.6.320.0060.00815.32
5.6.310.0030.01015.32
5.6.300.0030.01015.32
5.6.290.0030.00915.32
5.6.280.0000.04518.10
5.6.270.0090.00315.32
5.6.260.0060.00315.32
5.6.250.0080.04017.99
5.6.240.0110.02817.97
5.6.230.0030.03017.90
5.6.220.0060.02117.90
5.6.210.0020.02617.94
5.6.200.0030.03318.13
5.6.190.0090.02318.13
5.6.180.0060.02618.13
5.6.170.0030.02718.13
5.6.160.0120.01518.18
5.6.150.0070.02518.17
5.6.140.0030.02418.21
5.6.130.0020.02418.16
5.6.120.0100.03018.19
5.6.110.0020.02918.17
5.6.100.0030.03818.22
5.6.90.0050.04218.15
5.6.80.0030.03517.83
5.6.70.0080.04117.91
5.6.60.0080.04517.87
5.6.50.0050.04717.82
5.6.40.0080.02417.87
5.6.30.0030.03317.81
5.6.20.0030.03217.80
5.6.10.0080.04717.88
5.6.00.0130.03717.85
5.5.380.0070.02017.88
5.5.370.0030.02317.85
5.5.360.0050.02617.81
5.5.350.0050.02317.86
5.5.340.0030.02518.12
5.5.330.0030.02318.04
5.5.320.0030.02818.05
5.5.310.0030.02518.11
5.5.300.0030.02418.10
5.5.290.0070.02318.11
5.5.280.0120.01818.06
5.5.270.0050.02418.09
5.5.260.0060.04018.07
5.5.250.0070.04218.03
5.5.240.0080.04317.81
5.5.230.0060.04317.80
5.5.220.0080.04217.66
5.5.210.0030.04217.76
5.5.200.0130.03917.77
5.5.190.0070.04317.76
5.5.180.0070.04517.71
5.5.170.0100.00015.32
5.5.160.0070.03817.67
5.5.150.0050.04817.70
5.5.140.0050.03917.77
5.5.130.0100.02517.73
5.5.120.0080.03717.77
5.5.110.0100.03717.78
5.5.100.0070.03717.74
5.5.90.0050.02917.73
5.5.80.0050.04017.71
5.5.70.0040.03117.66
5.5.60.0040.02917.68
5.5.50.0120.02817.68
5.5.40.0050.02517.70
5.5.30.0080.04717.62
5.5.20.0100.04117.71
5.5.10.0070.04017.71
5.5.00.0030.02717.68
5.4.450.0040.02617.32
5.4.440.0010.02417.23
5.4.430.0070.03817.31
5.4.420.0140.02017.43
5.4.410.0050.04317.29
5.4.400.0050.04017.17
5.4.390.0080.01817.23
5.4.380.0100.03717.13
5.4.370.0050.04217.11
5.4.360.0060.04317.22
5.4.350.0050.03817.22
5.4.340.0080.03517.05
5.4.330.0070.00715.32
5.4.320.0070.03517.27
5.4.310.0070.02517.17
5.4.300.0070.03517.22
5.4.290.0110.03117.05
5.4.280.0080.03317.17
5.4.270.0080.02817.17
5.4.260.0070.04017.04
5.4.250.0040.04217.24
5.4.240.0080.02317.21
5.4.230.0100.03017.21
5.4.220.0030.02717.15
5.4.210.0030.03717.13
5.4.200.0050.04417.06
5.4.190.0080.04217.17
5.4.180.0000.03017.19
5.4.170.0050.02617.21
5.4.160.0030.04217.19
5.4.150.0070.03517.19
5.4.140.0110.03315.69
5.4.130.0060.02415.79
5.4.120.0060.04015.82
5.4.110.0050.03715.81
5.4.100.0070.04015.77
5.4.90.0130.02715.77
5.4.80.0030.03615.80
5.4.70.0060.03115.82
5.4.60.0080.03515.86
5.4.50.0100.03515.83
5.4.40.0070.03715.89
5.4.30.0080.03315.75
5.4.20.0050.02715.87
5.4.10.0000.03215.77
5.4.00.0040.04215.55
5.3.290.0080.03914.99
5.3.280.0050.03814.94
5.3.270.0050.04214.96
5.3.260.0030.04114.96
5.3.250.0050.04014.96
5.3.240.0070.02514.94
5.3.230.0050.02514.89
5.3.220.0030.04114.94
5.3.210.0090.03914.92
5.3.200.0060.02314.86
5.3.190.0130.03814.92
5.3.180.0080.03714.92
5.3.170.0050.02314.93
5.3.160.0030.04214.91
5.3.150.0020.04014.89
5.3.140.0030.04014.92
5.3.130.0030.02814.91
5.3.120.0030.04014.91
5.3.110.0030.04414.93
5.3.100.0070.03014.61
5.3.90.0020.02714.60
5.3.80.0030.04514.59
5.3.70.0050.04014.54
5.3.60.0050.02814.63
5.3.50.0090.02314.61
5.3.40.0050.02614.62
5.3.30.0070.02414.54
5.3.20.0040.04214.50
5.3.10.0030.03814.39
5.3.00.0070.03714.47
5.2.170.0100.05011.09
5.2.160.0070.06310.96
5.2.150.0070.05011.14
5.2.140.0070.03011.06
5.2.130.0070.05711.11
5.2.120.0000.05010.93
5.2.110.0070.03311.04
5.2.100.0030.05711.02
5.2.90.0070.03011.02
5.2.80.0030.03711.08
5.2.70.0070.04310.94
5.2.60.0070.05711.09
5.2.50.0070.06010.95
5.2.40.0100.03710.85
5.2.30.0000.05710.96
5.2.20.0070.06010.82
5.2.10.0070.03010.80
5.2.00.0030.03010.70
5.1.60.0030.0439.98
5.1.50.0030.05310.02
5.1.40.0100.04310.03
5.1.30.0070.05710.46
5.1.20.0030.05310.39
5.1.10.0000.05010.12
5.1.00.0170.0109.94
5.0.50.0000.0278.82
5.0.40.0070.0378.82
5.0.30.0070.0478.82
5.0.20.0030.0338.82
5.0.10.0000.0308.82
5.0.00.0070.0638.82
4.4.90.0000.0238.82
4.4.80.0030.0338.82
4.4.70.0030.0378.82
4.4.60.0070.0308.82
4.4.50.0030.0238.82
4.4.40.0070.0338.82
4.4.30.0000.0378.82
4.4.20.0000.0378.82
4.4.10.0070.0338.82
4.4.00.0030.0538.82
4.3.110.0030.0238.82
4.3.100.0070.0208.82
4.3.90.0070.0308.82
4.3.80.0000.0578.82
4.3.70.0070.0278.82
4.3.60.0030.0338.82
4.3.50.0030.0378.82
4.3.40.0030.0238.82
4.3.30.0000.0338.82
4.3.20.0070.0308.82
4.3.10.0000.0338.82
4.3.00.0030.0138.82

preferences:
41.41 ms | 401 KiB | 5 Q