3v4l.org

run code in 300+ PHP versions simultaneously
<?php function isMangled($key) { $arr = []; $arr[$key] = null; return (string) $key !== (string) key($arr); } var_dump( isMangled(1), isMangled(1.5), isMangled(null), isMangled("test"), isMangled("test\0") );

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)
8.3.60.0140.00018.68
8.3.50.0120.01322.91
8.3.40.0060.00920.35
8.3.30.0090.00618.81
8.3.20.0080.00020.37
8.3.10.0070.00023.70
8.3.00.0040.00419.63
8.2.180.0070.01018.16
8.2.170.0100.00322.96
8.2.160.0000.01320.52
8.2.150.0000.00724.18
8.2.140.0080.00024.66
8.2.130.0100.00726.16
8.2.120.0040.00420.94
8.2.110.0060.00621.17
8.2.100.0060.00617.91
8.2.90.0040.00418.03
8.2.80.0080.00017.97
8.2.70.0000.00817.50
8.2.60.0060.00318.05
8.2.50.0090.00018.07
8.2.40.0040.00418.09
8.2.30.0060.00318.04
8.2.20.0000.00817.74
8.2.10.0040.00417.99
8.2.00.0000.00917.66
8.1.280.0100.00725.92
8.1.270.0080.00023.83
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0120.00922.64
8.1.230.0040.00820.89
8.1.220.0030.00517.76
8.1.210.0000.00818.85
8.1.200.0060.00317.35
8.1.190.0040.00417.13
8.1.180.0030.00618.10
8.1.170.0030.00518.50
8.1.160.0000.00721.89
8.1.150.0070.00018.80
8.1.140.0070.00017.26
8.1.130.0000.00717.78
8.1.120.0040.00417.32
8.1.110.0070.00017.30
8.1.100.0030.00317.31
8.1.90.0030.00417.52
8.1.80.0000.00717.31
8.1.70.0050.00217.32
8.1.60.0000.00817.50
8.1.50.0030.00517.50
8.1.40.0060.00317.50
8.1.30.0030.00617.63
8.1.20.0030.00617.56
8.1.10.0030.00617.53
8.1.00.0040.00417.57
8.0.300.0030.00519.85
8.0.290.0080.00016.63
8.0.280.0020.00518.34
8.0.270.0030.00317.07
8.0.260.0030.00317.20
8.0.250.0030.00316.80
8.0.240.0040.00416.75
8.0.230.0040.00416.81
8.0.220.0070.00016.83
8.0.210.0040.00416.70
8.0.200.0040.00416.91
8.0.190.0070.00016.82
8.0.180.0000.00716.79
8.0.170.0040.00416.75
8.0.160.0000.00816.85
8.0.150.0040.00316.86
8.0.140.0030.00816.67
8.0.130.0000.00613.30
8.0.120.0040.00416.68
8.0.110.0000.00716.90
8.0.100.0000.00716.64
8.0.90.0000.00716.79
8.0.80.0070.00716.75
8.0.70.0040.00416.83
8.0.60.0000.01016.69
8.0.50.0040.00416.78
8.0.30.0090.00916.87
8.0.20.0050.01417.40
8.0.10.0080.00017.04
8.0.00.0070.01016.72
7.4.330.0050.00015.00
7.4.320.0070.00016.52
7.4.300.0030.00316.48
7.4.290.0030.00316.60
7.4.280.0080.00016.41
7.4.270.0040.00416.54
7.4.260.0000.00716.38
7.4.250.0040.00416.42
7.4.240.0070.00016.50
7.4.230.0050.00316.34
7.4.220.0060.01216.59
7.4.210.0030.01116.61
7.4.200.0000.00716.35
7.4.160.0080.00816.42
7.4.150.0330.01717.40
7.4.140.0100.00817.86
7.4.130.0100.01016.40
7.4.120.0070.00916.45
7.4.110.0130.00316.49
7.4.100.0110.00516.58
7.4.90.0060.01216.49
7.4.80.0100.00719.39
7.4.70.0030.01316.36
7.4.60.0070.01016.46
7.4.50.0030.00616.34
7.4.40.0070.01016.38
7.4.30.0090.00616.55
7.4.10.0030.01514.65
7.4.00.0070.01214.79
7.3.330.0030.00313.21
7.3.320.0000.00513.23
7.3.310.0060.00016.41
7.3.300.0040.00316.37
7.3.290.0060.00916.35
7.3.280.0080.01116.35
7.3.270.0150.00617.40
7.3.260.0140.00316.74
7.3.250.0140.00616.45
7.3.240.0090.00616.38
7.3.230.0090.00916.39
7.3.210.0150.00616.48
7.3.200.0060.01719.39
7.3.190.0070.01016.38
7.3.180.0060.00916.18
7.3.170.0070.01016.56
7.3.160.0080.00816.32
7.3.130.0090.00614.87
7.3.120.0100.01015.02
7.3.110.0060.01214.73
7.3.100.0060.00614.63
7.3.90.0000.00815.11
7.3.80.0100.01015.11
7.3.70.0000.01314.97
7.3.60.0050.00314.93
7.3.50.0030.01014.95
7.3.40.0030.01014.98
7.3.30.0070.00714.54
7.3.20.0100.00716.46
7.3.10.0120.00616.70
7.3.00.0090.00616.76
7.2.330.0130.00616.36
7.2.320.0100.01216.67
7.2.310.0100.00716.34
7.2.300.0100.00616.74
7.2.290.0060.01616.70
7.2.260.0110.00714.46
7.2.250.0060.01315.00
7.2.240.0030.01014.98
7.2.230.0070.00714.84
7.2.220.0040.00814.94
7.2.210.0110.00814.74
7.2.200.0040.00414.78
7.2.190.0050.00515.00
7.2.180.0040.01115.15
7.2.170.0030.00914.78
7.2.160.0080.00614.88
7.2.150.0090.00916.91
7.2.140.0130.00316.96
7.2.130.0120.00316.90
7.2.120.0100.00716.95
7.2.110.0120.00316.45
7.2.100.0070.00716.79
7.2.90.0040.00716.63
7.2.80.0030.01216.70
7.2.70.0040.00716.56
7.2.60.0070.00816.73
7.2.50.0090.00616.69
7.2.40.0070.01016.91
7.2.30.0040.01216.87
7.2.20.0030.00617.00
7.2.10.0060.00316.72
7.2.00.0050.00718.04
7.1.330.0030.01015.81
7.1.320.0030.01015.78
7.1.310.0090.00615.91
7.1.300.0030.01015.55
7.1.290.0070.00715.39
7.1.280.0000.01115.57
7.1.270.0110.00415.81
7.1.260.0030.00615.94
7.1.250.0000.01515.81
7.1.240.0030.00915.81
7.1.230.0110.00415.95
7.1.220.0100.00315.71
7.1.210.0000.00915.67
7.1.200.0000.01015.69
7.1.190.0060.00615.57
7.1.180.0070.00715.75
7.1.170.0000.01515.67
7.1.160.0000.00915.71
7.1.150.0080.00415.72
7.1.140.0070.00715.91
7.1.130.0080.00315.81
7.1.120.0030.00915.72
7.1.110.0070.00715.89
7.1.100.0020.01416.97
7.1.90.0030.01015.73
7.1.80.0000.01315.79
7.1.70.0020.00716.48
7.1.60.0070.01517.43
7.1.50.0090.00816.50
7.1.40.0100.00615.40
7.1.30.0040.01115.85
7.1.20.0090.00315.56
7.1.10.0030.01015.84
7.1.00.0060.04019.04
7.0.330.0000.01715.30
7.0.320.0070.00315.06
7.0.310.0070.00715.36
7.0.300.0090.00315.08
7.0.290.0080.00815.45
7.0.280.0070.00715.39
7.0.270.0030.00615.06
7.0.260.0020.00515.33
7.0.250.0070.00715.44
7.0.240.0060.01015.20
7.0.230.0040.00415.27
7.0.220.0040.01215.42
7.0.210.0030.00915.44
7.0.200.0020.01015.88
7.0.190.0070.00715.44
7.0.180.0030.00915.51
7.0.170.0070.00715.32
7.0.160.0060.00315.43
7.0.150.0070.00715.15
7.0.140.0070.04018.72
7.0.130.0090.00315.38
7.0.120.0030.01015.39
7.0.110.0000.01415.39
7.0.100.0100.00615.30
7.0.90.0060.00915.20
7.0.80.0000.01215.40
7.0.70.0100.00315.55
7.0.60.0030.04617.51
7.0.50.0080.04016.71
7.0.40.0060.04416.73
7.0.30.0180.03016.83
7.0.20.0200.02016.83
7.0.10.0120.04316.83
7.0.00.0020.02516.86
5.6.400.0030.00614.52
5.6.390.0030.01014.53
5.6.380.0100.00314.54
5.6.370.0110.00414.54
5.6.360.0080.00314.47
5.6.350.0100.00314.48
5.6.340.0030.00614.66
5.6.330.0030.01014.33
5.6.320.0040.01114.55
5.6.310.0030.00614.02
5.6.300.0030.01314.51
5.6.290.0110.00714.25
5.6.280.0020.04217.44
5.6.270.0060.00614.43
5.6.260.0100.00714.73
5.6.250.0090.00614.29
5.6.240.0110.00413.98
5.6.230.0000.00914.20
5.6.220.0100.00314.16
5.6.210.0110.03817.47
5.6.200.0070.03916.32
5.6.190.0140.03617.31
5.6.180.0110.02817.54
5.6.170.0120.03617.33
5.6.160.0100.02017.36
5.6.150.0080.03216.19
5.6.140.0030.02516.23
5.6.130.0060.03316.20
5.6.120.0150.03717.75
5.6.110.0130.04017.52
5.6.100.0090.04217.45
5.6.90.0040.05117.58
5.6.80.0090.03617.20
5.6.70.0000.01414.04
5.6.60.0030.00613.99
5.6.50.0030.01114.54
5.6.40.0060.00913.95
5.6.30.0000.01414.37
5.6.20.0100.00314.14
5.6.10.0060.00614.16
5.6.00.0030.00614.13
5.5.380.0090.00414.30
5.5.370.0030.01014.04
5.5.360.0000.00914.10
5.5.350.0150.04417.26
5.5.340.0070.04315.94
5.5.330.0080.03017.29
5.5.320.0220.02417.23
5.5.310.0180.03517.30
5.5.300.0060.02616.09
5.5.290.0090.04516.11
5.5.280.0080.03917.36
5.5.270.0090.04317.54
5.5.260.0030.03917.44
5.5.250.0080.03517.35
5.5.240.0150.03717.23
5.5.230.0030.00714.19
5.5.220.0110.00414.40
5.5.210.0030.01014.20
5.5.200.0100.00314.10
5.5.190.0040.00714.19
5.5.180.0060.00314.11
5.5.170.0000.00814.20
5.5.160.0060.01014.02
5.5.150.0030.00914.30
5.5.140.0030.01014.08
5.5.130.0000.01014.05
5.5.120.0090.00313.84
5.5.110.0040.00414.02
5.5.100.0100.00313.95
5.5.90.0040.00813.80
5.5.80.0000.01413.91
5.5.70.0100.00714.20
5.5.60.0030.00913.98
5.5.50.0090.00014.16
5.5.40.0030.00914.21
5.5.30.0030.01013.90
5.5.20.0030.00813.85
5.5.10.0000.01414.12
5.5.00.0040.01213.75
5.4.450.0120.02715.04
5.4.440.0170.02515.28
5.4.430.0200.02015.07
5.4.420.0140.02515.17
5.4.410.0060.02115.08
5.4.400.0220.02315.07
5.4.390.0130.02315.08
5.4.380.0180.02614.90
5.4.370.0240.02814.73
5.4.360.0240.02714.80
5.4.350.0150.03214.79
5.4.340.0150.03114.67
5.4.330.0060.00611.13
5.4.320.0040.02211.76
5.4.310.0070.01911.90
5.4.300.0050.02311.70
5.4.290.0040.02511.84
5.4.280.0050.02011.72
5.4.270.0040.02311.67
5.4.260.0060.02211.58
5.4.250.0030.02111.56
5.4.240.0060.01911.72
5.4.230.0070.02111.80
5.4.220.0020.02111.64
5.4.210.0050.02011.60
5.4.200.0050.02011.60
5.4.190.0030.02111.50
5.4.180.0090.01911.49
5.4.170.0070.02111.61
5.4.160.0030.02111.65
5.4.150.0060.01811.64
5.4.140.0070.02011.46
5.4.130.0050.02011.50
5.4.120.0050.01911.36
5.4.110.0060.02011.37
5.4.100.0080.02011.33
5.4.90.0070.02011.37
5.4.80.0050.02011.47
5.4.70.0020.02311.52
5.4.60.0070.01911.50
5.4.50.0040.02311.49
5.4.40.0070.01811.63
5.4.30.0030.02111.56
5.4.20.0010.02111.63
5.4.10.0020.02711.54
5.4.00.0020.02111.28
5.3.290.0060.03912.80
5.3.280.0080.04512.71
5.3.270.0050.03912.72
5.3.260.0050.03812.71
5.3.250.0050.03612.72
5.3.240.0080.03912.72
5.3.230.0080.03812.70
5.3.220.0070.03412.68
5.3.210.0040.04412.68
5.3.200.0040.03712.68
5.3.190.0030.03812.67
5.3.180.0070.03512.67
5.3.170.0050.03612.67
5.3.160.0050.03612.68
5.3.150.0060.03612.68
5.3.140.0060.03612.66
5.3.130.0080.03912.66
5.3.120.0080.04512.66
5.3.110.0060.03812.66
5.3.100.0050.03712.13
5.3.90.0080.03312.11
5.3.80.0060.03612.09
5.3.70.0070.03412.09
5.3.60.0080.03412.08
5.3.50.0050.03612.02
5.3.40.0030.03812.02
5.3.30.0050.03711.98
5.3.20.0030.03611.77
5.3.10.0050.03311.74
5.3.00.0060.03511.71
5.2.170.0030.0359.21
5.2.160.0030.0309.21
5.2.150.0040.0309.22
5.2.140.0020.0329.21
5.2.130.0030.0309.17
5.2.120.0080.0249.17
5.2.110.0060.0279.18
5.2.100.0030.0309.19
5.2.90.0020.0319.18
5.2.80.0070.0279.18
5.2.70.0050.0289.17
5.2.60.0050.0289.12
5.2.50.0050.0289.09
5.2.40.0070.0259.07
5.2.30.0060.0389.05
5.2.20.0040.0289.04
5.2.10.0030.0298.95
5.2.00.0040.0358.80
5.1.60.0020.0288.09
5.1.50.0030.0308.08
5.1.40.0040.0248.06
5.1.30.0040.0268.42
5.1.20.0010.0288.44
5.1.10.0030.0398.16
5.1.00.0040.0248.16
5.0.50.0030.0226.64
5.0.40.0040.0196.50
5.0.30.0040.0306.31
5.0.20.0060.0166.28
5.0.10.0010.0226.25
5.0.00.0030.0306.25
4.4.90.0030.0174.78
4.4.80.0020.0154.75
4.4.70.0030.0154.75
4.4.60.0030.0174.76
4.4.50.0000.0214.77
4.4.40.0010.0264.71
4.4.30.0060.0174.76
4.4.20.0030.0154.84
4.4.10.0030.0224.85
4.4.00.0040.0234.76
4.3.110.0030.0174.67
4.3.100.0030.0174.66
4.3.90.0020.0174.63
4.3.80.0020.0294.59
4.3.70.0040.0184.63
4.3.60.0010.0174.63
4.3.50.0030.0154.63
4.3.40.0010.0264.54
4.3.30.0040.0153.30
4.3.20.0020.0153.27
4.3.10.0020.0163.24
4.3.00.0070.01315.96

preferences:
56.16 ms | 401 KiB | 5 Q