3v4l.org

run code in 300+ PHP versions simultaneously
<?php class B {} $a = new stdClass; $b = new B; $b->a = 1; $item='null'; var_dump(array_key_exists($item, $a), array_key_exists('a', $a), array_key_exists('a', $b));

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)
8.3.60.0120.01216.88
8.3.50.0110.00517.47
8.3.40.0120.00318.84
8.3.30.0100.00619.02
8.3.20.0040.00418.73
8.3.10.0000.00820.53
8.3.00.0080.00019.38
8.2.180.0110.00416.50
8.2.170.0070.00722.96
8.2.160.0070.01020.55
8.2.150.0040.00425.66
8.2.140.0030.00624.66
8.2.130.0000.00726.16
8.2.120.0080.00420.71
8.2.110.0060.00320.97
8.2.100.0110.00017.91
8.2.90.0030.00720.78
8.2.80.0020.00518.04
8.2.70.0060.00317.63
8.2.60.0040.00418.05
8.2.50.0000.00818.07
8.2.40.0040.00418.28
8.2.30.0000.00718.04
8.2.20.0040.00417.78
8.2.10.0000.00717.71
8.2.00.0000.00717.75
8.1.280.0170.00325.92
8.1.270.0100.00324.66
8.1.260.0040.00426.35
8.1.250.0070.00328.09
8.1.240.0000.00920.88
8.1.230.0000.01120.92
8.1.220.0000.00917.74
8.1.210.0000.00818.96
8.1.200.0100.00017.23
8.1.190.0050.00317.30
8.1.180.0040.00418.10
8.1.170.0040.00418.74
8.1.160.0000.00718.70
8.1.150.0080.00018.63
8.1.140.0040.00417.40
8.1.130.0030.00317.86
8.1.120.0030.00317.39
8.1.110.0000.00717.30
8.1.100.0040.00417.32
8.1.90.0020.00517.43
8.1.80.0000.00717.38
8.1.70.0030.00317.41
8.1.60.0040.00417.58
8.1.50.0050.00517.42
8.1.40.0030.00617.56
8.1.30.0060.00317.64
8.1.20.0030.00617.54
8.1.10.0050.00317.60
8.1.00.0000.00717.53
8.0.300.0000.00720.07
8.0.290.0040.00416.75
8.0.280.0050.00218.43
8.0.270.0000.00717.19
8.0.260.0030.00316.70
8.0.250.0040.00417.02
8.0.240.0000.00716.86
8.0.230.0030.00316.95
8.0.220.0020.00516.96
8.0.210.0030.00316.87
8.0.200.0070.00016.89
8.0.190.0070.00016.98
8.0.180.0000.00816.93
8.0.170.0030.00616.94
8.0.160.0000.00716.91
8.0.150.0090.00016.92
8.0.140.0000.00816.88
8.0.130.0000.00613.35
8.0.120.0000.00816.88
8.0.110.0040.00416.89
8.0.100.0030.00316.93
8.0.90.0040.00416.80
8.0.80.0030.01116.95
8.0.70.0040.00417.01
8.0.60.0070.00016.78
8.0.50.0040.00416.69
8.0.30.0100.00816.98
8.0.20.0100.00917.21
8.0.10.0000.00817.04
8.0.00.0090.00816.60
7.4.330.0000.00612.90
7.4.320.0000.00616.65
7.4.300.0000.00716.36
7.4.290.0040.00416.41
7.4.280.0000.00816.60
7.4.270.0050.00216.45
7.4.260.0050.00013.22
7.4.250.0090.00016.50
7.4.240.0030.00316.54
7.4.230.0040.00416.41
7.4.220.0160.00616.47
7.4.210.0070.01016.57
7.4.200.0000.00716.34
7.4.190.0000.00716.55
7.4.160.0040.01816.37
7.4.150.0070.01016.54
7.4.140.0110.00716.66
7.4.130.0140.00616.54
7.4.120.0060.01016.47
7.4.110.0070.01016.50
7.4.100.0070.01016.34
7.4.90.0060.01216.49
7.4.80.0050.01019.39
7.4.70.0060.01016.53
7.4.60.0070.01416.55
7.4.50.0090.00316.45
7.4.40.0030.01116.54
7.4.30.0140.00316.55
7.4.10.0070.01016.37
7.4.00.0030.01215.64
7.3.330.0030.00313.26
7.3.320.0060.00013.09
7.3.310.0030.00316.17
7.3.300.0000.00816.23
7.3.290.0110.01116.18
7.3.280.0050.01116.21
7.3.270.0060.01316.16
7.3.260.0110.00616.42
7.3.250.0110.00816.34
7.3.240.0080.00816.48
7.3.230.0090.00916.27
7.3.210.0070.01016.32
7.3.200.0080.00816.19
7.3.190.0060.01216.15
7.3.180.0110.00416.26
7.3.170.0090.00616.39
7.3.160.0030.01216.21
7.3.130.0100.00716.45
7.3.120.0090.00815.53
7.3.110.0030.01016.18
7.3.100.0090.00916.12
7.3.90.0060.00916.20
7.3.80.0000.00816.19
7.3.70.0030.00616.35
7.3.60.0060.00616.19
7.3.50.0000.00916.29
7.3.40.0120.00016.29
7.3.30.0030.01015.94
7.3.20.0130.00318.05
7.3.10.0100.00318.06
7.3.00.0030.01017.82
7.2.330.0110.00716.75
7.2.320.0140.00316.63
7.2.310.0140.00916.35
7.2.300.0100.00716.48
7.2.290.0100.00616.38
7.2.260.0000.01416.37
7.2.250.0030.01616.62
7.2.240.0030.01216.59
7.2.230.0060.01216.30
7.2.220.0050.00616.67
7.2.210.0030.01016.34
7.2.200.0070.00716.59
7.2.190.0090.00316.51
7.2.180.0080.00416.42
7.2.170.0040.01116.44
7.2.160.0030.01016.26
7.2.150.0030.01218.50
7.2.140.0090.00318.42
7.2.130.0060.00918.35
7.2.120.0070.00418.47
7.2.110.0030.01018.41
7.2.100.0050.00518.35
7.2.90.0100.00718.36
7.2.80.0030.01018.22
7.2.70.0070.00718.14
7.2.60.0070.00718.30
7.2.50.0030.00918.37
7.2.40.0160.00318.41
7.2.30.0100.00318.26
7.2.20.0120.00418.24
7.2.10.0040.01218.31
7.2.00.0020.01018.76
7.1.330.0030.01017.27
7.1.320.0090.00317.22
7.1.310.0080.00017.11
7.1.300.0100.00017.35
7.1.290.0080.00417.26
7.1.280.0100.00317.07
7.1.270.0000.00917.23
7.1.260.0050.00517.15
7.1.250.0030.00617.13
7.1.240.0060.00617.14
7.1.230.0040.00817.17
7.1.220.0080.00817.18
7.1.210.0070.00717.13
7.1.200.0070.00417.23
7.1.190.0030.00617.30
7.1.180.0000.01217.30
7.1.170.0070.01117.07
7.1.160.0030.01317.17
7.1.150.0080.00417.43
7.1.140.0040.00817.23
7.1.130.0060.01016.85
7.1.120.0080.00417.45
7.1.110.0030.01017.22
7.1.100.0060.00917.70
7.1.90.0040.00717.27
7.1.80.0040.00717.26
7.1.70.0040.00917.16
7.1.60.0040.01118.25
7.1.50.0030.01217.05
7.1.40.0070.00317.36
7.1.30.0030.01217.14
7.1.20.0060.00617.25
7.1.10.0070.00417.39
7.1.00.0030.03819.70
7.0.330.0030.01316.77
7.0.320.0080.00816.82
7.0.310.0030.00617.04
7.0.300.0100.00716.92
7.0.290.0000.01217.07
7.0.280.0000.01217.01
7.0.270.0100.00616.64
7.0.260.0040.00816.90
7.0.250.0000.01217.04
7.0.240.0000.01016.97
7.0.230.0070.01016.82
7.0.220.0000.01516.94
7.0.210.0040.00816.85
7.0.200.0070.00616.90
7.0.190.0000.01116.94
7.0.180.0070.00716.93
7.0.170.0030.01216.99
7.0.160.0080.00317.04
7.0.150.0080.00416.88
7.0.140.0100.03519.60
7.0.130.0110.00016.85
7.0.120.0060.04119.44
7.0.110.0100.00316.50
7.0.100.0030.00916.86
7.0.90.0030.01317.01
7.0.80.0070.01116.86
7.0.70.0000.01316.74
7.0.60.0050.04118.29
7.0.50.0080.03817.37
7.0.40.0040.04817.62
7.0.30.0100.03317.49
7.0.20.0080.03017.51
7.0.10.0150.04817.59
7.0.00.0030.02617.33
5.6.400.0100.00315.95
5.6.390.0060.00615.98
5.6.380.0040.00815.84
5.6.370.0100.00315.79
5.6.360.0100.00715.78
5.6.350.0000.01815.86
5.6.340.0040.01115.84
5.6.330.0060.00616.02
5.6.320.0090.00315.77
5.6.310.0100.00316.25
5.6.300.0040.00715.80
5.6.290.0000.01416.13
5.6.280.0020.04318.42
5.6.270.0080.00615.87
5.6.260.0000.01115.72
5.6.250.0100.00715.73
5.6.240.0040.01115.86
5.6.230.0080.00515.63
5.6.220.0040.00815.71
5.6.210.0080.04618.16
5.6.200.0020.04417.10
5.6.190.0070.04217.94
5.6.180.0180.04318.22
5.6.170.0270.04018.30
5.6.160.0030.05018.14
5.6.150.0100.04217.06
5.6.140.0090.04017.02
5.6.130.0060.03817.10
5.6.120.0050.03318.38
5.6.110.0120.03518.29
5.6.100.0130.03718.35
5.6.90.0050.02518.32
5.6.80.0030.04518.11
5.6.70.0150.04418.05
5.6.60.0000.01415.94
5.6.50.0040.01115.82
5.6.40.0000.01215.74
5.6.30.0060.00615.71
5.6.20.0070.00715.71
5.6.10.0000.01016.04
5.6.00.0100.00715.64
5.5.380.0000.01015.59
5.5.370.0060.00615.85
5.5.360.0060.00616.16
5.5.350.0240.03718.03
5.5.340.0020.02516.86
5.5.330.0020.03518.04
5.5.320.0200.03218.05
5.5.310.0160.03818.06
5.5.300.0030.02716.81
5.5.290.0060.02116.92
5.5.280.0100.04018.24
5.5.270.0050.05018.29
5.5.260.0050.03518.23
5.5.250.0120.04418.09
5.5.240.0100.01818.06
5.5.230.0060.00915.85
5.5.220.0080.00415.59
5.5.210.0100.00315.71
5.5.200.0040.01115.79
5.5.190.0040.01115.80
5.5.180.0100.00315.63
5.5.170.0070.00415.66
5.5.160.0120.00615.78
5.5.150.0030.01215.74
5.5.140.0000.01315.88
5.5.130.0040.00815.82
5.5.120.0100.00315.84
5.5.110.0060.00615.33
5.5.100.0110.00715.80
5.5.90.0070.01015.73
5.5.80.0080.00815.70
5.5.70.0100.00715.74
5.5.60.0100.00615.71
5.5.50.0030.01015.56
5.5.40.0000.01015.87
5.5.30.0000.01115.87
5.5.20.0000.01715.70
5.5.10.0070.00715.79
5.5.00.0030.00915.81
5.4.450.0050.02315.94
5.4.440.0050.02216.00
5.4.430.0050.02215.91
5.4.420.0080.01916.09
5.4.410.0030.02816.00
5.4.400.0030.02015.66
5.4.390.0040.02215.82
5.4.380.0040.02115.85
5.4.370.0020.02415.78
5.4.360.0020.02215.88
5.4.350.0060.02115.82
5.4.340.0030.02215.71
5.4.330.0060.01012.56
5.4.320.0050.02115.61
5.4.310.0070.02616.02
5.4.300.0070.01915.92
5.4.290.0070.02315.74
5.4.280.0020.02515.84
5.4.270.0050.02016.02
5.4.260.0050.02315.89
5.4.250.0030.03015.71
5.4.240.0110.03615.66
5.4.230.0050.04015.78
5.4.220.0090.03315.66
5.4.210.0030.04415.73
5.4.200.0080.03615.79
5.4.190.0050.03115.70
5.4.180.0050.03915.76
5.4.170.0060.02115.88
5.4.160.0050.02315.91
5.4.150.0120.03215.78
5.4.140.0080.02314.45
5.4.130.0100.03914.44
5.4.120.0040.04114.61
5.4.110.0020.04014.41
5.4.100.0030.04514.51
5.4.90.0090.02114.49
5.4.80.0080.02814.35
5.4.70.0030.04114.44
5.4.60.0060.02614.49
5.4.50.0100.03214.38
5.4.40.0030.03314.46
5.4.30.0070.03514.40
5.4.20.0080.03814.37
5.4.10.0050.03614.49
5.4.00.0070.04014.27
5.3.290.0070.01813.86
5.3.280.0070.03713.83
5.3.270.0100.03113.81
5.3.260.0070.03913.78
5.3.250.0050.02113.75
5.3.240.0090.03613.80
5.3.230.0070.03813.76
5.3.220.0030.04213.78
5.3.210.0090.03913.74
5.3.200.0050.04413.64
5.3.190.0070.04013.73
5.3.180.0050.04313.78
5.3.170.0030.04313.81
5.3.160.0050.02213.79
5.3.150.0050.02213.79
5.3.140.0030.04513.77
5.3.130.0020.03213.77
5.3.120.0070.02613.74
5.3.110.0070.03713.74
5.3.100.0050.04313.41
5.3.90.0080.02613.56
5.3.80.0050.02313.57
5.3.70.0060.02613.45
5.3.60.0070.03813.46
5.3.50.0050.04013.39
5.3.40.0050.02713.41
5.3.30.0090.03913.39
5.3.20.0100.02213.26
5.3.10.0050.03313.18
5.3.00.0120.03213.26
5.2.170.0030.05011.14
5.2.160.0030.05311.10
5.2.150.0030.06711.06
5.2.140.0100.05311.09
5.2.130.0030.06311.02
5.2.120.0030.06011.11
5.2.110.0100.05711.02
5.2.100.0070.06011.16
5.2.90.0100.06011.01
5.2.80.0070.06311.09
5.2.70.0030.03011.13
5.2.60.0070.05711.11
5.2.50.0030.06711.16
5.2.40.0030.06011.06
5.2.30.0100.04310.96
5.2.20.0100.05010.99
5.2.10.0070.06010.86
5.2.00.0100.06010.71
5.1.60.0070.0509.96
5.1.50.0030.04710.01
5.1.40.0100.04710.02
5.1.30.0030.03710.33
5.1.20.0030.05710.38
5.1.10.0070.03010.08
5.1.00.0000.03310.20
5.0.50.0030.0208.56
5.0.40.0030.0338.45
5.0.30.0030.0408.38
5.0.20.0000.0308.38
5.0.10.0000.0278.38
5.0.00.0030.0678.38
4.4.90.0000.0308.38
4.4.80.0000.0208.38
4.4.70.0070.0308.38
4.4.60.0030.0338.38
4.4.50.0070.0238.38
4.4.40.0030.0508.38
4.4.30.0000.0238.38
4.4.20.0000.0208.38
4.4.10.0100.0308.38
4.4.00.0000.0338.38
4.3.110.0000.0278.38
4.3.100.0030.0208.38
4.3.90.0030.0208.38
4.3.80.0000.0278.38
4.3.70.0000.0178.38
4.3.60.0070.0108.38
4.3.50.0000.0178.38
4.3.40.0000.0438.38
4.3.30.0070.0308.38
4.3.20.0030.0238.38
4.3.10.0030.0338.38
4.3.00.0030.0338.38

preferences:
58.02 ms | 401 KiB | 5 Q