3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array(1 => 'huhu'); var_dump(isset($arr[false]), $arr[false]);

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)
8.3.40.0070.00718.52
8.3.30.0110.00318.79
8.3.20.0070.00018.65
8.3.10.0040.00420.26
8.3.00.0090.00017.75
8.2.170.0140.00022.96
8.2.160.0100.00320.26
8.2.150.0090.00024.18
8.2.140.0000.00724.66
8.2.130.0080.00026.16
8.2.120.0060.00319.88
8.2.110.0100.00017.93
8.2.100.0040.00817.91
8.2.90.0090.00020.80
8.2.80.0060.00317.80
8.2.70.0060.00317.63
8.2.60.0000.00817.80
8.2.50.0080.00018.07
8.2.40.0030.00619.95
8.2.30.0040.00418.15
8.2.20.0000.00817.59
8.2.10.0060.00317.64
8.2.00.0040.00417.72
8.1.270.0080.00024.66
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0050.00523.84
8.1.230.0090.00320.83
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0060.00317.25
8.1.190.0000.00717.53
8.1.180.0040.00418.10
8.1.170.0080.00018.77
8.1.160.0000.00718.79
8.1.150.0020.00518.51
8.1.140.0040.00417.34
8.1.130.0000.00617.84
8.1.120.0000.00717.45
8.1.110.0040.00417.30
8.1.100.0040.00417.23
8.1.90.0000.00717.43
8.1.80.0000.00717.29
8.1.70.0000.00717.40
8.1.60.0000.00717.55
8.1.50.0000.00917.45
8.1.40.0000.00817.43
8.1.30.0000.00917.57
8.1.20.0000.00917.59
8.1.10.0000.00817.42
8.1.00.0030.00617.34
8.0.300.0060.00320.02
8.0.290.0000.00816.75
8.0.280.0000.00718.44
8.0.270.0070.00017.25
8.0.260.0040.00416.80
8.0.250.0050.00216.86
8.0.240.0070.00316.99
8.0.230.0000.00616.86
8.0.220.0070.00016.88
8.0.210.0040.00416.92
8.0.200.0040.00416.99
8.0.190.0000.00716.87
8.0.180.0040.00416.87
8.0.170.0000.00816.81
8.0.160.0070.00016.96
8.0.150.0000.00816.69
8.0.140.0000.00816.93
8.0.130.0050.00013.27
8.0.120.0040.00416.85
8.0.110.0040.00416.89
8.0.100.0040.00416.89
8.0.90.0020.00516.94
8.0.80.0070.01316.94
8.0.70.0040.00416.93
8.0.60.0040.00416.88
8.0.50.0070.00016.90
8.0.30.0060.01217.12
8.0.20.0090.01417.18
8.0.10.0080.00016.95
8.0.00.0080.01216.94
7.4.330.0020.00212.83
7.4.320.0030.00316.56
7.4.300.0000.00716.42
7.4.290.0030.00316.39
7.4.280.0030.00916.44
7.4.270.0030.00316.59
7.4.260.0000.00513.15
7.4.250.0050.00316.40
7.4.240.0030.00316.55
7.4.230.0030.00316.62
7.4.220.0060.00916.53
7.4.210.0070.01016.53
7.4.200.0000.00716.34
7.4.190.0030.00316.34
7.4.160.0090.00616.52
7.4.150.0160.00016.49
7.4.140.0120.00716.39
7.4.130.0050.01316.44
7.4.120.0110.01016.51
7.4.110.0090.01216.27
7.4.100.0090.00916.31
7.4.90.0070.01016.38
7.4.80.0050.01116.36
7.4.70.0100.00716.63
7.4.60.0060.02016.36
7.4.50.0030.00516.27
7.4.40.0100.00316.38
7.4.30.0040.01216.62
7.4.10.0090.00915.03
7.4.00.0030.01114.88
7.3.330.0030.00313.06
7.3.320.0030.00313.16
7.3.310.0040.00416.41
7.3.300.0000.00616.31
7.3.290.0040.01116.32
7.3.280.0040.01116.31
7.3.270.0070.01016.23
7.3.260.0100.00816.47
7.3.250.0170.00316.44
7.3.240.0130.00316.31
7.3.230.0150.00616.32
7.3.210.0070.01016.35
7.3.200.0070.01719.39
7.3.190.0080.01116.45
7.3.180.0070.01016.24
7.3.170.0060.01116.31
7.3.160.0080.00816.42
7.3.130.0120.00314.79
7.3.120.0080.00914.92
7.3.110.0070.01114.78
7.3.100.0080.00514.80
7.3.90.0000.01114.80
7.3.80.0060.01214.89
7.3.70.0040.01114.84
7.3.60.0060.00614.74
7.3.50.0070.00714.81
7.3.40.0120.00614.73
7.3.30.0000.00814.77
7.3.20.0030.00916.33
7.3.10.0030.01016.42
7.3.00.0070.00316.73
7.2.330.0180.00016.52
7.2.320.0090.00916.74
7.2.310.0130.00616.59
7.2.300.0140.00716.57
7.2.290.0070.01016.51
7.2.260.0090.00914.79
7.2.250.0150.00414.78
7.2.240.0030.01315.03
7.2.230.0110.00715.07
7.2.220.0110.00715.14
7.2.210.0030.00714.92
7.2.200.0030.01114.97
7.2.190.0100.00314.94
7.2.180.0030.01014.77
7.2.170.0060.00914.97
7.2.160.0070.00715.01
7.2.150.0030.01316.70
7.2.140.0090.00616.82
7.2.130.0090.00616.71
7.2.120.0070.00716.75
7.2.110.0090.00316.70
7.2.100.0060.00916.95
7.2.90.0110.00416.81
7.2.80.0100.00316.65
7.2.70.0090.00616.84
7.2.60.0040.00816.98
7.2.50.0060.00917.02
7.2.40.0040.01216.97
7.2.30.0070.00716.98
7.2.20.0070.00716.63
7.2.10.0080.00416.93
7.2.00.0030.00918.01
7.1.330.0030.01015.91
7.1.320.0060.01215.75
7.1.310.0050.00815.88
7.1.300.0090.00615.53
7.1.290.0060.00315.67
7.1.280.0000.01315.72
7.1.270.0000.00915.43
7.1.260.0070.00715.65
7.1.250.0090.00615.45
7.1.240.0110.00415.71
7.1.230.0000.01215.80
7.1.220.0000.00815.71
7.1.210.0070.00715.73
7.1.200.0000.00915.70
7.1.190.0000.01715.56
7.1.180.0030.01015.61
7.1.170.0040.00715.81
7.1.160.0030.01015.71
7.1.150.0070.00715.50
7.1.140.0070.01015.59
7.1.130.0000.01015.82
7.1.120.0070.00715.83
7.1.110.0000.01115.67
7.1.100.0050.00516.98
7.1.90.0090.00315.53
7.1.80.0000.01515.80
7.1.70.0020.00716.29
7.1.60.0100.00817.61
7.1.50.0070.01116.15
7.1.40.0040.00815.81
7.1.30.0030.01415.63
7.1.20.0070.00715.70
7.1.10.0070.00715.40
7.1.00.0040.03919.07
7.0.330.0030.00915.18
7.0.320.0080.00015.30
7.0.310.0030.01015.20
7.0.300.0040.01115.43
7.0.290.0000.01215.42
7.0.280.0040.00715.08
7.0.270.0030.00715.32
7.0.260.0000.00915.29
7.0.250.0030.00715.04
7.0.240.0040.00915.34
7.0.230.0040.01114.97
7.0.220.0040.01115.51
7.0.210.0030.00615.33
7.0.200.0030.00815.98
7.0.190.0040.00715.27
7.0.180.0070.00315.36
7.0.170.0040.01215.49
7.0.160.0110.00415.11
7.0.150.0100.00315.26
7.0.140.0050.05118.65
7.0.130.0100.00315.16
7.0.120.0080.03718.68
7.0.110.0100.00315.25
7.0.100.0030.01015.27
7.0.90.0040.00814.87
7.0.80.0030.00914.97
7.0.70.0030.00915.45
7.0.60.0050.04517.76
7.0.50.0050.02516.47
7.0.40.0020.04815.40
7.0.30.0030.03315.48
7.0.20.0090.04215.54
7.0.10.0070.02715.48
7.0.00.0110.02815.60
5.6.400.0040.01114.28
5.6.390.0040.01014.48
5.6.380.0110.00014.02
5.6.370.0000.01114.08
5.6.360.0000.01814.10
5.6.350.0040.01014.08
5.6.340.0100.00614.12
5.6.330.0070.00714.28
5.6.320.0030.01013.84
5.6.310.0100.00314.13
5.6.300.0040.00714.08
5.6.290.0040.00813.95
5.6.280.0080.03817.62
5.6.270.0070.00714.41
5.6.260.0060.00314.54
5.6.250.0030.01014.22
5.6.240.0000.01614.08
5.6.230.0090.00414.38
5.6.220.0030.00514.29
5.6.210.0080.04017.48
5.6.200.0020.05116.31
5.6.190.0050.04416.08
5.6.180.0040.02416.16
5.6.170.0040.03816.11
5.6.160.0100.02216.06
5.6.150.0050.03216.31
5.6.140.0060.03016.18
5.6.130.0030.03216.27
5.6.120.0030.02716.18
5.6.110.0030.03116.15
5.6.100.0030.02516.08
5.6.90.0070.02416.19
5.6.80.0050.04715.96
5.6.70.0040.02115.73
5.6.60.0130.03315.92
5.6.50.0110.04015.86
5.6.40.0110.03415.84
5.6.30.0050.04015.83
5.6.20.0030.02615.79
5.6.10.0030.02715.86
5.6.00.0080.02515.88
5.5.380.0040.00714.17
5.5.370.0080.00814.25
5.5.360.0060.00614.27
5.5.350.0170.03817.27
5.5.340.0050.03816.16
5.5.330.0060.02616.24
5.5.320.0090.03816.16
5.5.310.0030.05016.10
5.5.300.0080.02316.14
5.5.290.0080.02116.20
5.5.280.0080.04116.13
5.5.270.0080.03815.96
5.5.260.0080.04516.03
5.5.250.0070.02515.98
5.5.240.0090.02815.67
5.5.230.0070.03215.78
5.5.220.0050.04015.66
5.5.210.0030.02815.74
5.5.200.0020.03015.72
5.5.190.0050.03915.70
5.5.180.0030.04415.76
5.5.170.0000.01314.30
5.5.160.0100.04015.56
5.5.150.0050.03515.61
5.5.140.0020.02615.80
5.5.130.0070.03315.80
5.5.120.0050.04215.68
5.5.110.0070.03015.75
5.5.100.0040.03415.66
5.5.90.0090.04415.57
5.5.80.0030.03315.74
5.5.70.0070.02315.72
5.5.60.0060.02115.55
5.5.50.0120.03715.68
5.5.40.0080.02715.55
5.5.30.0050.02215.71
5.5.20.0020.03715.45
5.5.10.0110.03015.75
5.5.00.0090.04315.70
5.4.450.0020.03415.73
5.4.440.0030.04515.77
5.4.430.0030.02715.73
5.4.420.0030.02315.85
5.4.410.0080.04015.74
5.4.400.0050.02915.64
5.4.390.0030.02815.66
5.4.380.0050.03315.58
5.4.370.0050.03615.65
5.4.360.0050.02515.50
5.4.350.0030.03515.59
5.4.340.0080.02315.62
5.4.330.0040.00812.18
5.4.320.0020.02615.64
5.4.310.0050.03515.63
5.4.300.0020.02515.53
5.4.290.0050.03315.58
5.4.280.0050.04215.65
5.4.270.0050.04315.58
5.4.260.0050.02515.51
5.4.250.0050.02815.49
5.4.240.0130.03515.53
5.4.230.0100.03515.57
5.4.220.0030.02315.60
5.4.210.0080.02015.53
5.4.200.0070.02815.60
5.4.190.0060.02115.60
5.4.180.0080.03815.65
5.4.170.0020.03615.69
5.4.160.0030.04515.58
5.4.150.0030.04515.49
5.4.140.0050.02514.18
5.4.130.0090.03214.23
5.4.120.0100.03514.20
5.4.110.0050.02214.27
5.4.100.0120.03714.29
5.4.90.0030.04414.28
5.4.80.0070.03714.23
5.4.70.0070.03714.34
5.4.60.0090.03814.29
5.4.50.0020.02214.21
5.4.40.0070.02314.23
5.4.30.0030.02214.29
5.4.20.0000.02514.25
5.4.10.0020.02214.20
5.4.00.0030.02113.94
5.3.290.0050.03513.41
5.3.280.0070.01813.37
5.3.270.0050.03513.37
5.3.260.0080.02313.37
5.3.250.0130.02113.32
5.3.240.0020.03513.43
5.3.230.0060.03313.36
5.3.220.0040.03413.35
5.3.210.0030.02513.35
5.3.200.0050.02313.28
5.3.190.0080.03513.35
5.3.180.0050.03813.34
5.3.170.0070.03813.26
5.3.160.0070.03713.33
5.3.150.0040.03913.28
5.3.140.0050.02113.28
5.3.130.0020.02313.35
5.3.120.0050.02013.25
5.3.110.0010.02413.35
5.3.100.0030.02113.11
5.3.90.0060.01813.08
5.3.80.0050.02013.07
5.3.70.0060.01813.07
5.3.60.0050.01813.07
5.3.50.0040.01812.94
5.3.40.0040.02713.04
5.3.30.0030.02713.03
5.3.20.0050.03812.81
5.3.10.0030.02412.90
5.3.00.0090.02012.89
5.2.170.0030.03710.96
5.2.160.0030.02711.14
5.2.150.0000.04711.14
5.2.140.0000.03010.96
5.2.130.0030.03311.02
5.2.120.0070.02311.08
5.2.110.0070.04710.92
5.2.100.0000.04011.04
5.2.90.0100.05310.99
5.2.80.0000.03011.04
5.2.70.0070.02711.00
5.2.60.0070.03011.05
5.2.50.0030.05310.98
5.2.40.0100.02710.96
5.2.30.0000.03010.93
5.2.20.0000.03711.09
5.2.10.0070.02710.81
5.2.00.0030.02710.71
5.1.60.0000.0279.92
5.1.50.0000.0279.97
5.1.40.0030.0239.80
5.1.30.0030.02310.34
5.1.20.0070.02310.30
5.1.10.0000.02710.07
5.1.00.0030.02310.01
5.0.50.0070.0138.59
5.0.40.0000.0208.23
5.0.30.0000.0308.29
5.0.20.0070.0138.12
5.0.10.0000.0208.19
5.0.00.0000.0308.06
4.4.90.0030.0207.64
4.4.80.0000.0337.64
4.4.70.0030.0137.64
4.4.60.0070.0177.64
4.4.50.0030.0137.64
4.4.40.0000.0237.64
4.4.30.0000.0177.64
4.4.20.0030.0137.64
4.4.10.0030.0137.64
4.4.00.0030.0277.64
4.3.110.0000.0177.64
4.3.100.0000.0177.64
4.3.90.0030.0137.64
4.3.80.0000.0277.64
4.3.70.0000.0137.64
4.3.60.0000.0137.64
4.3.50.0030.0137.64
4.3.40.0000.0237.64
4.3.30.0000.0137.64
4.3.20.0030.0177.64
4.3.10.0000.0137.64
4.3.00.0000.0137.64

preferences:
44.11 ms | 400 KiB | 5 Q