3v4l.org

run code in 300+ PHP versions simultaneously
<?php function myCheck($in) { return isset($in); } $var1='Something'; $var2='var1'; echo 'Set:' . isset($$var2); $var2='nope'; echo 'Set:' . isset($$var2); ?>

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)
8.3.60.0070.01418.39
8.3.50.0090.01022.10
8.3.40.0120.00618.71
8.3.30.0100.00319.09
8.3.20.0070.00020.14
8.3.10.0000.00822.09
8.3.00.0030.00522.32
8.2.180.0170.00316.38
8.2.170.0140.00422.96
8.2.160.0100.00320.31
8.2.150.0050.00324.18
8.2.140.0090.00324.66
8.2.130.0140.00326.16
8.2.120.0040.00419.36
8.2.110.0000.00920.35
8.2.100.0070.00417.91
8.2.90.0050.00319.26
8.2.80.0030.00517.97
8.2.70.0120.00217.25
8.2.60.0080.00017.93
8.2.50.0060.00318.07
8.2.40.0000.00818.16
8.2.30.0040.00417.93
8.2.20.0050.00217.57
8.2.10.0000.00819.38
8.2.00.0070.00017.67
8.1.280.0090.00625.92
8.1.270.0040.00422.05
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0030.00623.80
8.1.230.0000.01122.78
8.1.220.0040.00417.77
8.1.210.0030.00518.77
8.1.200.0100.00017.36
8.1.190.0040.00417.41
8.1.180.0040.00418.10
8.1.170.0030.00618.50
8.1.160.0070.00022.01
8.1.150.0040.00418.63
8.1.140.0000.00817.38
8.1.130.0070.00017.69
8.1.120.0040.00417.38
8.1.110.0070.00017.37
8.1.100.0040.00417.50
8.1.90.0040.00417.47
8.1.80.0070.00017.35
8.1.70.0000.00717.34
8.1.60.0050.00517.54
8.1.50.0000.00717.53
8.1.40.0000.00717.57
8.1.30.0040.00417.64
8.1.20.0040.00417.63
8.1.10.0000.00717.41
8.1.00.0040.00417.29
8.0.300.0040.00418.77
8.0.290.0040.00317.05
8.0.280.0030.00318.43
8.0.270.0000.00717.30
8.0.260.0040.00416.82
8.0.250.0000.00716.87
8.0.240.0050.00216.94
8.0.230.0030.00316.97
8.0.220.0000.00716.91
8.0.210.0000.00716.79
8.0.200.0030.00616.83
8.0.190.0040.00316.95
8.0.180.0070.00316.89
8.0.170.0070.00016.80
8.0.160.0000.00816.81
8.0.150.0000.00716.84
8.0.140.0080.00016.83
8.0.130.0070.00013.38
8.0.120.0000.00716.83
8.0.110.0040.00416.70
8.0.100.0050.00216.68
8.0.90.0030.00516.77
8.0.80.0090.00616.88
8.0.70.0030.00316.88
8.0.60.0000.00716.89
8.0.50.0030.00616.71
8.0.30.0100.00917.11
8.0.20.0080.01117.40
8.0.10.0030.00517.01
8.0.00.0120.00616.81
7.4.330.0000.00615.02
7.4.320.0030.00316.64
7.4.300.0040.00416.59
7.4.290.0030.00316.56
7.4.280.0000.00716.58
7.4.270.0000.00716.52
7.4.260.0060.00016.63
7.4.250.0040.00416.48
7.4.240.0040.00416.46
7.4.230.0000.00716.57
7.4.220.0040.01516.65
7.4.210.0080.00816.58
7.4.200.0040.00416.57
7.4.190.0030.00316.73
7.4.160.0090.00616.43
7.4.150.0090.00917.40
7.4.140.0100.01217.86
7.4.130.0090.01116.46
7.4.120.0070.01016.32
7.4.110.0150.00716.47
7.4.100.0120.01216.31
7.4.90.0160.00616.35
7.4.80.0130.01019.39
7.4.70.0060.00916.46
7.4.60.0060.00916.47
7.4.50.0050.00316.28
7.4.40.0040.01422.77
7.4.30.0070.01016.53
7.4.10.0030.01614.79
7.4.00.0060.01114.80
7.3.330.0020.00213.19
7.3.320.0060.00013.10
7.3.310.0030.00316.27
7.3.300.0080.00016.23
7.3.290.0070.00716.19
7.3.280.0070.00916.25
7.3.270.0120.00617.40
7.3.260.0040.01116.33
7.3.250.0090.01016.27
7.3.240.0100.00616.22
7.3.230.0130.00316.54
7.3.210.0100.00516.38
7.3.200.0000.01519.39
7.3.190.0090.00916.31
7.3.180.0000.01416.41
7.3.170.0090.00616.30
7.3.160.0130.00316.16
7.3.130.0070.00714.91
7.3.120.0090.00814.66
7.3.110.0050.01214.78
7.3.100.0080.00614.73
7.3.90.0020.00914.59
7.3.80.0060.00914.63
7.3.70.0000.01214.68
7.3.60.0010.01214.60
7.3.50.0050.00914.62
7.3.40.0030.01114.84
7.3.30.0040.00914.57
7.3.20.0070.00916.63
7.3.10.0110.00316.52
7.3.00.0070.00716.56
7.2.330.0110.00816.52
7.2.320.0160.00616.47
7.2.310.0140.00616.55
7.2.300.0070.01716.72
7.2.290.0100.00716.67
7.2.260.0070.01315.18
7.2.250.0080.01014.93
7.2.240.0050.01114.94
7.2.230.0050.01114.91
7.2.220.0050.01115.03
7.2.210.0080.00514.97
7.2.200.0060.00714.91
7.2.190.0030.01015.04
7.2.180.0070.01014.77
7.2.170.0060.00914.87
7.2.160.0110.00015.00
7.2.150.0030.01416.47
7.2.140.0030.01416.91
7.2.130.0080.00416.99
7.2.120.0060.00816.53
7.2.110.0030.00616.73
7.2.100.0000.01316.88
7.2.90.0030.01216.74
7.2.80.0110.00316.98
7.2.70.0000.01616.67
7.2.60.0050.01216.97
7.2.50.0030.00616.83
7.2.40.0070.00716.99
7.2.30.0100.01016.86
7.2.20.0080.01117.01
7.2.10.0060.00616.95
7.2.00.0040.00818.05
7.1.330.0070.00515.44
7.1.320.0040.01015.67
7.1.310.0090.00515.76
7.1.300.0070.00515.58
7.1.290.0030.00815.42
7.1.280.0000.01315.50
7.1.270.0060.00515.63
7.1.260.0040.01115.78
7.1.250.0000.00815.73
7.1.240.0030.01015.64
7.1.230.0060.01215.55
7.1.220.0040.00415.61
7.1.210.0000.01415.64
7.1.200.0050.00615.77
7.1.190.0110.00315.50
7.1.180.0030.00915.64
7.1.170.0040.00815.35
7.1.160.0040.01115.57
7.1.150.0060.00915.61
7.1.140.0080.00415.61
7.1.130.0090.00315.72
7.1.120.0060.00915.64
7.1.110.0070.00715.65
7.1.100.0070.00516.96
7.1.90.0040.00815.72
7.1.80.0030.01015.53
7.1.70.0020.00716.42
7.1.60.0130.00717.82
7.1.50.0070.01416.28
7.1.40.0060.01015.75
7.1.30.0040.00715.88
7.1.20.0000.01415.60
7.1.10.0070.00715.63
7.1.00.0010.04419.06
7.0.330.0000.00915.30
7.0.320.0000.00915.46
7.0.310.0030.00915.27
7.0.300.0070.00715.40
7.0.290.0070.00415.45
7.0.280.0040.01115.44
7.0.270.0070.00715.50
7.0.260.0040.00415.06
7.0.250.0040.00415.37
7.0.240.0030.00715.14
7.0.230.0070.00715.34
7.0.220.0000.00815.41
7.0.210.0070.00715.41
7.0.200.0030.00916.06
7.0.190.0090.00615.23
7.0.180.0030.00715.23
7.0.170.0030.00915.09
7.0.160.0110.00315.10
7.0.150.0030.01015.36
7.0.140.0070.03818.71
7.0.130.0060.00915.46
7.0.120.0060.00615.42
7.0.110.0040.01215.43
7.0.100.0210.04317.68
7.0.90.0190.03717.59
7.0.80.0020.04617.56
7.0.70.0070.04217.64
7.0.60.0030.03217.54
7.0.50.0070.02717.84
7.0.40.0070.02716.63
7.0.30.0050.02516.68
7.0.20.0050.02616.57
7.0.10.0020.02716.75
7.0.00.0090.03716.77
5.6.400.0090.00614.08
5.6.390.0100.00013.99
5.6.380.0030.00714.17
5.6.370.0000.01414.25
5.6.360.0060.00314.32
5.6.350.0100.00714.41
5.6.340.0050.00814.57
5.6.330.0070.00714.47
5.6.320.0000.01414.36
5.6.310.0080.00314.50
5.6.300.0090.00614.15
5.6.290.0070.01014.25
5.6.280.0070.03617.73
5.6.270.0100.00314.24
5.6.260.0080.00414.20
5.6.250.0050.04517.51
5.6.240.0130.03817.47
5.6.230.0120.03917.43
5.6.220.0080.02817.45
5.6.210.0020.02517.42
5.6.200.0070.02417.81
5.6.190.0080.02517.82
5.6.180.0030.02517.61
5.6.170.0070.02317.49
5.6.160.0030.03017.50
5.6.150.0110.02217.57
5.6.140.0060.03617.68
5.6.130.0050.02317.70
5.6.120.0020.02817.63
5.6.110.0070.02317.85
5.6.100.0070.03517.68
5.6.90.0100.03017.69
5.6.80.0030.02417.38
5.6.70.0050.02117.37
5.6.60.0010.02517.37
5.6.50.0060.02317.25
5.6.40.0070.01917.28
5.6.30.0110.02717.16
5.6.20.0040.02717.42
5.6.10.0050.02517.25
5.6.00.0070.02017.25
5.5.380.0070.04317.39
5.5.370.0160.03417.32
5.5.360.0100.04317.03
5.5.350.0020.02717.34
5.5.340.0050.02417.53
5.5.330.0050.02317.54
5.5.320.0050.02517.39
5.5.310.0080.02017.38
5.5.300.0040.02117.54
5.5.290.0070.02417.47
5.5.280.0110.03817.62
5.5.270.0060.02617.36
5.5.260.0050.04317.50
5.5.250.0050.02917.32
5.5.240.0060.03117.20
5.5.230.0040.02417.03
5.5.220.0050.02417.13
5.5.210.0030.02417.21
5.5.200.0040.03117.18
5.5.190.0040.02317.02
5.5.180.0060.02317.13
5.5.170.0060.00814.16
5.5.160.0030.02417.23
5.5.150.0050.02417.13
5.5.140.0080.03117.05
5.5.130.0060.03217.12
5.5.120.0020.03317.17
5.5.110.0090.03217.07
5.5.100.0070.04217.13
5.5.90.0050.03017.13
5.5.80.0090.04417.19
5.5.70.0060.03917.18
5.5.60.0050.04517.01
5.5.50.0030.04917.20
5.5.40.0050.04316.85
5.5.30.0070.04016.98
5.5.20.0070.04316.90
5.5.10.0030.03016.96
5.5.00.0100.05117.00
5.4.450.0030.02715.21
5.4.440.0030.02515.37
5.4.430.0050.02115.23
5.4.420.0050.02215.06
5.4.410.0040.02215.21
5.4.400.0060.02014.80
5.4.390.0080.02514.98
5.4.380.0050.02014.97
5.4.370.0050.02115.01
5.4.360.0020.02415.15
5.4.350.0030.02015.12
5.4.340.0060.01815.04
5.4.330.0060.00810.98
5.4.320.0030.02215.03
5.4.310.0030.02015.03
5.4.300.0040.02114.92
5.4.290.0080.02015.11
5.4.280.0120.04014.87
5.4.270.0020.04214.77
5.4.260.0050.04015.04
5.4.250.0050.03515.04
5.4.240.0050.04114.85
5.4.230.0040.04014.94
5.4.220.0050.05115.09
5.4.210.0080.03814.91
5.4.200.0100.03714.90
5.4.190.0050.03014.95
5.4.180.0050.03914.87
5.4.170.0100.03714.81
5.4.160.0060.04014.95
5.4.150.0080.04015.01
5.4.140.0060.03813.57
5.4.130.0050.04113.70
5.4.120.0070.04213.73
5.4.110.0100.03213.79
5.4.100.0050.03313.58
5.4.90.0050.04313.48
5.4.80.0110.03513.59
5.4.70.0080.02813.55
5.4.60.0050.03013.66
5.4.50.0080.03813.63
5.4.40.0080.03813.82
5.4.30.0080.03513.65
5.4.20.0050.03713.75
5.4.10.0060.03813.67
5.4.00.0070.03813.48
5.3.290.0050.02012.69
5.3.280.0060.02312.53
5.3.270.0050.04012.56
5.3.260.0010.04612.54
5.3.250.0080.03312.59
5.3.240.0040.03412.49
5.3.230.0060.04012.44
5.3.220.0070.04212.44
5.3.210.0140.03512.43
5.3.200.0020.04012.43
5.3.190.0020.04512.43
5.3.180.0030.03912.45
5.3.170.0100.03712.56
5.3.160.0050.04412.55
5.3.150.0050.04612.57
5.3.140.0100.02212.46
5.3.130.0050.02712.60
5.3.120.0090.03112.51
5.3.110.0050.03812.56
5.3.100.0070.04012.29
5.3.90.0030.04212.24
5.3.80.0030.04211.99
5.3.70.0080.04012.09
5.3.60.0050.04012.17
5.3.50.0050.03312.17
5.3.40.0100.03312.13
5.3.30.0080.03112.24
5.3.20.0030.02412.13
5.3.10.0060.03811.91
5.3.00.0050.04011.91
5.2.170.0000.05311.17
5.2.160.0100.06011.15
5.2.150.0000.05011.07
5.2.140.0070.06011.06
5.2.130.0100.03311.23
5.2.120.0030.03310.96
5.2.110.0030.03311.04
5.2.100.0170.04311.03
5.2.90.0070.05011.16
5.2.80.0130.05711.23
5.2.70.0030.06311.21
5.2.60.0030.03311.17
5.2.50.0100.04011.08
5.2.40.0100.05711.08
5.2.30.0070.05711.09
5.2.20.0000.04010.89
5.2.10.0070.03710.80
5.2.00.0030.03010.76
5.1.60.0000.04310.04
5.1.50.0100.0479.84
5.1.40.0130.03710.07
5.1.30.0030.04310.20
5.1.20.0030.04010.46
5.1.10.0100.0339.91
5.1.00.0130.05010.13
5.0.50.0070.0378.53
5.0.40.0070.0408.51
5.0.30.0030.0478.25
5.0.20.0070.0408.29
5.0.10.0000.0408.25
5.0.00.0100.0538.23
4.4.90.0000.0408.14
4.4.80.0030.0308.14
4.4.70.0030.0378.14
4.4.60.0030.0338.14
4.4.50.0100.0278.14
4.4.40.0030.0508.14
4.4.30.0070.0208.14
4.4.20.0000.0208.14
4.4.10.0030.0338.14
4.4.00.0030.0338.14
4.3.110.0000.0378.14
4.3.100.0030.0338.14
4.3.90.0030.0338.14
4.3.80.0000.0538.14
4.3.70.0030.0278.14
4.3.60.0070.0178.14
4.3.50.0000.0208.14
4.3.40.0000.0538.14
4.3.30.0030.0308.14
4.3.20.0000.0338.14
4.3.10.0030.0338.14
4.3.00.0030.0278.14

preferences:
42.53 ms | 400 KiB | 5 Q