3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x=new stdClass(); $y='1002'; $x->$y = ''; var_dump(key(array(1002=>'')), key((array)$x));

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)
8.3.60.0090.00616.63
8.3.50.0150.00316.44
8.3.40.0110.00418.71
8.3.30.0150.00018.50
8.3.20.0040.00418.64
8.3.10.0030.00718.63
8.3.00.0040.00419.13
8.2.180.0100.01018.38
8.2.170.0170.00322.96
8.2.160.0030.01318.76
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0030.00618.71
8.2.110.0060.00319.41
8.2.100.0060.00617.91
8.2.90.0040.00419.22
8.2.80.0060.00317.97
8.2.70.0040.00417.63
8.2.60.0080.00317.80
8.2.50.0040.00418.07
8.2.40.0050.00318.09
8.2.30.0040.00417.96
8.2.20.0050.00319.28
8.2.10.0050.00217.63
8.2.00.0030.00517.62
8.1.280.0070.01425.92
8.1.270.0040.00423.99
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0080.00420.59
8.1.230.0040.00820.95
8.1.220.0000.00818.77
8.1.210.0070.00318.77
8.1.200.0090.00017.36
8.1.190.0000.00817.51
8.1.180.0040.00418.10
8.1.170.0040.00418.90
8.1.160.0040.00418.80
8.1.150.0070.00018.64
8.1.140.0040.00417.53
8.1.130.0030.00317.70
8.1.120.0000.00717.38
8.1.110.0000.00717.36
8.1.100.0040.00417.34
8.1.90.0000.00717.46
8.1.80.0000.00717.49
8.1.70.0070.00017.38
8.1.60.0060.00317.64
8.1.50.0000.00817.45
8.1.40.0040.00417.43
8.1.30.0000.00917.61
8.1.20.0040.00417.59
8.1.10.0000.00717.58
8.1.00.0040.00417.45
8.0.300.0040.00419.63
8.0.290.0000.00717.18
8.0.280.0030.00618.45
8.0.270.0000.00717.17
8.0.260.0000.00716.77
8.0.250.0040.00416.96
8.0.240.0040.00416.95
8.0.230.0030.00616.85
8.0.220.0040.00416.86
8.0.210.0000.00716.92
8.0.200.0060.00316.88
8.0.190.0050.00316.99
8.0.180.0000.00716.92
8.0.170.0040.00416.81
8.0.160.0000.00716.89
8.0.150.0020.00516.83
8.0.140.0000.01116.88
8.0.130.0030.00313.32
8.0.120.0000.00716.87
8.0.110.0000.00716.88
8.0.100.0040.00416.90
8.0.90.0040.00416.84
8.0.80.0100.00716.89
8.0.70.0040.00416.75
8.0.60.0040.00416.95
8.0.50.0000.00716.96
8.0.30.0160.00717.07
8.0.20.0130.00617.04
8.0.10.0000.00817.07
8.0.00.0090.01216.67
7.4.330.0050.00013.01
7.4.320.0040.00416.49
7.4.300.0060.00016.59
7.4.290.0030.00316.58
7.4.280.0000.00816.59
7.4.270.0000.00716.56
7.4.260.0030.00313.26
7.4.250.0040.00416.60
7.4.240.0040.00416.62
7.4.230.0030.00316.41
7.4.220.0100.00616.46
7.4.210.0060.00916.63
7.4.200.0040.00416.70
7.4.190.0000.00716.69
7.4.160.0060.00916.38
7.4.150.0130.02716.55
7.4.140.0150.00916.36
7.4.130.0110.00616.22
7.4.120.0040.01616.47
7.4.110.0030.01416.46
7.4.100.0030.01716.67
7.4.90.0070.01716.52
7.4.80.0060.01219.39
7.4.70.0090.00916.43
7.4.60.0130.00316.34
7.4.50.0060.00316.26
7.4.40.0040.01216.39
7.4.30.0140.00316.50
7.4.00.0090.00714.94
7.3.330.0060.00013.12
7.3.320.0000.00613.12
7.3.310.0030.00316.20
7.3.300.0000.00616.25
7.3.290.0070.00816.25
7.3.280.0100.00616.28
7.3.270.0100.00616.24
7.3.260.0070.01016.32
7.3.250.0090.00916.39
7.3.240.0060.01016.30
7.3.230.0060.01316.48
7.3.210.0100.00716.27
7.3.200.0090.00916.26
7.3.190.0100.01016.32
7.3.180.0040.01216.27
7.3.170.0030.01316.58
7.3.160.0090.00916.25
7.3.120.0050.01214.57
7.3.110.0030.01214.46
7.3.100.0090.00614.84
7.3.90.0060.00914.97
7.3.80.0090.00615.06
7.3.70.0070.00714.64
7.3.60.0080.00014.60
7.3.50.0130.00014.50
7.3.40.0120.00414.55
7.3.30.0040.00714.80
7.3.20.0090.00616.61
7.3.10.0000.01316.49
7.3.00.0060.00616.49
7.2.330.0130.00416.67
7.2.320.0080.00916.55
7.2.310.0120.00616.32
7.2.300.0120.01216.47
7.2.290.0060.01216.51
7.2.250.0060.01214.92
7.2.240.0060.01315.16
7.2.230.0090.00615.20
7.2.220.0100.00715.20
7.2.210.0040.01115.11
7.2.200.0110.00314.75
7.2.190.0030.01014.73
7.2.180.0000.01214.88
7.2.170.0140.00414.96
7.2.130.0030.01216.61
7.2.120.0090.00316.51
7.2.110.0070.00316.81
7.2.100.0000.01216.79
7.2.90.0080.00616.78
7.2.80.0090.00316.89
7.2.70.0070.01016.76
7.2.60.0090.00416.71
7.2.50.0100.00316.87
7.2.40.0110.00716.78
7.2.30.0060.00616.72
7.2.20.0060.01216.90
7.2.10.0060.00616.96
7.2.00.0040.00917.89
7.1.330.0000.01415.91
7.1.320.0040.01115.88
7.1.310.0040.01115.94
7.1.300.0040.00715.81
7.1.290.0030.01115.54
7.1.280.0060.01215.69
7.1.270.0040.00815.89
7.1.260.0030.01215.81
7.1.250.0050.00415.74
7.1.240.0120.00615.75
7.1.230.0070.00715.79
7.1.220.0030.00715.78
7.1.210.0130.00015.63
7.1.200.0030.00815.76
7.1.190.0100.00015.58
7.1.180.0030.01015.51
7.1.170.0000.01315.68
7.1.160.0000.01015.74
7.1.150.0030.01015.55
7.1.140.0050.00515.45
7.1.130.0070.01015.59
7.1.120.0040.00715.71
7.1.110.0080.00615.87
7.1.100.0050.00716.67
7.1.90.0040.01115.32
7.1.80.0100.00315.51
7.1.70.0010.00716.42
7.1.60.0080.00717.34
7.1.50.0030.01016.15
7.1.40.0130.00015.73
7.1.30.0090.00615.70
7.1.20.0030.00715.74
7.1.10.0100.00315.56
7.1.00.0030.02119.01
7.0.330.0070.00715.25
7.0.320.0060.00315.09
7.0.310.0100.00315.25
7.0.300.0100.00015.12
7.0.290.0040.00715.30
7.0.280.0030.00715.41
7.0.270.0000.00815.41
7.0.260.0080.00415.22
7.0.250.0080.00315.28
7.0.240.0050.00315.11
7.0.230.0140.00015.07
7.0.220.0080.00315.21
7.0.210.0030.01015.48
7.0.200.0080.00616.09
7.0.190.0030.00615.46
7.0.180.0120.00315.27
7.0.170.0040.00815.15
7.0.160.0130.00315.25
7.0.150.0060.00615.36
7.0.140.0020.04418.52
7.0.130.0060.00815.40
7.0.120.0040.02018.69
7.0.110.0060.00615.41
7.0.100.0060.00615.28
7.0.90.0060.00614.95
7.0.80.0000.00915.45
7.0.70.0040.01215.32
7.0.60.0020.05018.50
7.0.50.0030.03316.54
7.0.40.0050.02316.57
7.0.30.0180.04016.82
7.0.20.0160.04616.75
7.0.10.0070.04716.76
7.0.00.0030.02516.66
5.6.380.0030.01014.41
5.6.370.0060.01014.46
5.6.360.0070.00314.44
5.6.350.0000.01114.23
5.6.340.0000.01314.38
5.6.330.0060.00614.65
5.6.320.0070.00714.32
5.6.310.0070.00714.42
5.6.300.0030.00714.59
5.6.290.0060.00614.09
5.6.280.0030.03917.81
5.6.270.0080.00014.50
5.6.260.0090.00614.16
5.6.250.0030.01014.24
5.6.240.0030.00714.24
5.6.230.0050.00514.13
5.6.220.0000.00914.18
5.6.210.0120.04117.29
5.6.200.0090.04316.21
5.6.190.0070.05017.43
5.6.180.0130.04717.21
5.6.170.0070.02717.28
5.6.160.0030.02517.20
5.6.150.0030.02616.10
5.6.140.0070.04216.34
5.6.130.0070.03216.39
5.6.120.0100.04517.73
5.6.110.0060.04617.53
5.6.100.0110.03817.67
5.6.90.0100.04317.43
5.6.80.0060.04417.36
5.6.70.0030.01014.05
5.6.60.0030.01014.07
5.6.50.0000.01514.23
5.6.40.0060.00614.11
5.6.30.0080.00314.16
5.6.20.0080.00314.14
5.6.10.0100.00314.30
5.6.00.0100.00314.48
5.5.380.0100.00310.90
5.5.370.0030.01110.90
5.5.360.0000.01010.90
5.5.350.0090.04015.66
5.5.340.0050.02314.39
5.5.330.0110.03715.48
5.5.320.0190.03615.93
5.5.310.0200.04015.69
5.5.300.0140.03714.55
5.5.290.0140.01714.63
5.5.280.0090.02615.84
5.5.270.0120.04315.87
5.5.260.0040.04715.81
5.5.250.0100.04315.99
5.5.240.0130.02315.56
5.5.230.0120.00011.12
5.5.220.0100.00311.16
5.5.210.0000.01110.97
5.5.200.0040.00410.90
5.5.190.0060.00611.07
5.5.180.0030.00611.14
5.5.170.0070.00410.90
5.5.160.0030.00311.04
5.5.150.0050.00311.05
5.5.140.0080.00311.05
5.5.130.0100.00011.21
5.5.120.0050.00510.90
5.5.110.0000.01010.91
5.5.100.0000.01110.90
5.5.90.0030.00310.95
5.5.80.0000.01211.03
5.5.70.0030.00710.90
5.5.60.0060.00311.04
5.5.50.0030.00310.90
5.5.40.0000.00711.12
5.5.30.0050.00510.91
5.5.20.0030.00310.90
5.5.10.0000.01210.90
5.5.00.0060.00610.90
5.4.450.0060.02515.22
5.4.440.0070.02515.18
5.4.430.0080.02315.17
5.4.420.0090.02415.13
5.4.410.0050.04215.13
5.4.400.0160.02314.99
5.4.390.0080.02115.04
5.4.380.0060.04114.99
5.4.370.0130.03314.88
5.4.360.0060.03614.87
5.4.350.0070.03914.96
5.4.340.0050.04214.88
5.4.330.0030.00310.90
5.4.320.0070.03215.11
5.4.310.0030.02915.01
5.4.300.0060.01814.95
5.4.290.0030.03615.01
5.4.280.0080.03815.08
5.4.270.0030.03515.16
5.4.260.0070.02915.02
5.4.250.0090.02614.89
5.4.240.0010.02514.87
5.4.230.0100.04015.02
5.4.220.0060.02114.89
5.4.210.0060.04014.84
5.4.200.0050.02515.18
5.4.190.0060.03514.84
5.4.180.0080.03415.06
5.4.170.0070.04015.03
5.4.160.0000.04114.90
5.4.150.0080.03615.01
5.4.140.0020.02913.62
5.4.130.0060.03813.79
5.4.120.0040.03913.62
5.4.110.0030.02613.62
5.4.100.0050.03513.71
5.4.90.0050.02513.57
5.4.80.0080.03613.57
5.4.70.0070.03313.62
5.4.60.0050.03713.63
5.4.50.0060.03713.58
5.4.40.0090.03513.61
5.4.30.0050.04213.57
5.4.20.0080.03813.58
5.4.10.0100.02813.80
5.4.00.0070.03013.39
5.3.290.0120.02712.77
5.3.280.0020.04012.71
5.3.270.0060.04012.72
5.3.260.0020.03012.71
5.3.250.0030.03112.76
5.3.240.0040.04412.71
5.3.230.0050.02412.69
5.3.220.0090.02812.69
5.3.210.0050.02212.70
5.3.200.0070.03712.64
5.3.190.0050.02212.68
5.3.180.0030.02712.69
5.3.170.0040.03112.69
5.3.160.0030.04312.62
5.3.150.0090.02312.63
5.3.140.0060.02312.62
5.3.130.0070.02712.66
5.3.120.0040.04012.68
5.3.110.0020.03712.63
5.3.100.0030.02112.43
5.3.90.0050.02112.36
5.3.80.0000.04012.43
5.3.70.0060.03012.37
5.3.60.0070.03812.42
5.3.50.0050.03312.33
5.3.40.0030.02312.38
5.3.30.0060.01812.30
5.3.20.0050.03812.26
5.3.10.0050.02312.32
5.3.00.0050.02812.25
5.2.170.0080.03111.10
5.2.160.0040.03011.02
5.2.150.0030.02011.06
5.2.140.0010.02310.98
5.2.130.0050.02210.97
5.2.120.0000.03710.91
5.2.110.0030.03010.96
5.2.100.0050.01711.00
5.2.90.0030.02310.99
5.2.80.0020.03311.08
5.2.70.0020.03510.92
5.2.60.0050.03111.01
5.2.50.0000.02310.92
5.2.40.0060.02710.98
5.2.30.0050.02710.93
5.2.20.0030.02710.88
5.2.10.0070.02710.80
5.2.00.0030.02010.80
5.1.60.0110.02210.47
5.1.50.0070.02710.44
5.1.40.0050.02510.46
5.1.30.0050.02010.61
5.1.20.0040.01510.55
5.1.10.0030.01610.47
5.1.00.0030.02010.48
5.0.50.0040.0129.71
5.0.40.0020.0129.65
5.0.30.0030.0269.54
5.0.20.0020.0139.62
5.0.10.0050.0129.48
5.0.00.0020.0179.55
4.4.90.0000.0149.34
4.4.80.0000.0119.34
4.4.70.0000.0159.34
4.4.60.0020.0229.34
4.4.50.0030.0169.34
4.4.40.0050.0189.34
4.4.30.0030.0099.34
4.4.20.0010.0159.34
4.4.10.0020.0189.34
4.4.00.0020.0159.34
4.3.110.0020.0159.34
4.3.100.0050.0109.34
4.3.90.0030.0179.34
4.3.80.0000.0159.34
4.3.70.0020.0139.34
4.3.60.0000.0129.34
4.3.50.0050.0109.34
4.3.40.0000.0189.34
4.3.30.0030.0189.34
4.3.20.0050.0119.34
4.3.10.0010.0139.34
4.3.00.0010.0199.34

preferences:
64.09 ms | 401 KiB | 5 Q