3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = new \ArrayObject; $a->a =0; var_dump($a->a); var_dump($a['a']); var_dump(isset($a->a)); var_dump(isset($a['a']));

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)
8.3.60.0110.00418.43
8.3.50.0110.01121.98
8.3.40.0110.00719.00
8.3.30.0030.01020.34
8.3.20.0000.00720.34
8.3.10.0000.00821.74
8.3.00.0070.00022.34
8.2.180.0040.01418.53
8.2.170.0090.00622.96
8.2.160.0100.00722.29
8.2.150.0040.00424.18
8.2.140.0100.00024.66
8.2.130.0030.00526.16
8.2.120.0050.00319.66
8.2.110.0070.00419.21
8.2.100.0060.00617.78
8.2.90.0040.00419.22
8.2.80.0030.00517.97
8.2.70.0080.00017.50
8.2.60.0030.00518.03
8.2.50.0080.00018.10
8.2.40.0000.00820.59
8.2.30.0040.00417.94
8.2.20.0070.00017.72
8.2.10.0050.00517.56
8.2.00.0090.00017.56
8.1.280.0000.01425.92
8.1.270.0040.00424.66
8.1.260.0030.00526.35
8.1.250.0080.00028.09
8.1.240.0030.00722.07
8.1.230.0040.00720.88
8.1.220.0000.00817.74
8.1.210.0030.00718.77
8.1.200.0060.00317.35
8.1.190.0060.00317.23
8.1.180.0040.00418.10
8.1.170.0060.00318.59
8.1.160.0000.00722.18
8.1.150.0040.00418.62
8.1.140.0040.00417.44
8.1.130.0090.00017.88
8.1.120.0030.00317.41
8.1.110.0000.00817.41
8.1.100.0000.00817.29
8.1.90.0040.00417.40
8.1.80.0000.00717.45
8.1.70.0030.00317.39
8.1.60.0040.00417.51
8.1.50.0060.00317.36
8.1.40.0030.00517.41
8.1.30.0080.00017.43
8.1.20.0080.00017.61
8.1.10.0000.00717.44
8.1.00.0070.00017.40
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0000.00718.43
8.0.270.0000.00717.13
8.0.260.0030.00316.84
8.0.250.0030.00316.98
8.0.240.0080.00016.89
8.0.230.0000.00716.92
8.0.220.0030.00316.93
8.0.210.0040.00416.98
8.0.200.0040.00416.92
8.0.190.0040.00416.81
8.0.180.0000.00716.81
8.0.170.0000.00716.97
8.0.160.0040.00416.91
8.0.150.0040.00416.77
8.0.140.0040.00416.79
8.0.130.0030.00313.36
8.0.120.0050.00216.86
8.0.110.0000.00716.89
8.0.100.0000.00716.95
8.0.90.0000.00716.96
8.0.80.0070.01016.78
8.0.70.0070.00016.95
8.0.60.0040.00416.92
8.0.50.0000.00716.96
8.0.30.0090.01017.24
8.0.20.0070.01317.40
8.0.10.0050.00216.92
8.0.00.0070.00916.68
7.4.330.0000.00615.00
7.4.320.0000.00716.43
7.4.300.0030.00316.54
7.4.290.0070.00016.49
7.4.280.0030.00316.57
7.4.270.0060.00316.59
7.4.260.0040.00416.46
7.4.250.0000.00716.34
7.4.240.0050.00316.42
7.4.230.0070.00016.28
7.4.220.0150.00316.41
7.4.210.0060.00816.45
7.4.200.0070.00016.57
7.4.190.0050.00216.49
7.4.160.0090.00616.32
7.4.150.0140.00517.40
7.4.140.0090.00917.86
7.4.130.0090.00916.46
7.4.120.0140.00716.55
7.4.110.0090.00916.60
7.4.100.0110.00916.48
7.4.90.0090.00916.43
7.4.80.0130.01319.39
7.4.70.0030.01316.59
7.4.60.0100.00716.52
7.4.50.0050.00316.40
7.4.40.0100.00322.77
7.4.30.0030.01516.48
7.4.00.0080.00714.87
7.3.330.0050.00013.23
7.3.320.0000.00613.23
7.3.310.0030.00316.35
7.3.300.0060.00016.33
7.3.290.0090.00616.31
7.3.280.0110.00816.31
7.3.270.0230.00017.40
7.3.260.0110.00616.26
7.3.250.0100.00916.38
7.3.240.0070.01016.32
7.3.230.0000.01716.42
7.3.210.0090.01216.31
7.3.200.0110.00619.39
7.3.190.0110.00616.25
7.3.180.0110.00516.41
7.3.170.0030.01216.45
7.3.160.0120.00316.26
7.3.120.0050.00914.76
7.3.110.0110.00715.08
7.3.100.0080.00814.50
7.3.90.0040.01114.79
7.3.80.0060.00914.95
7.3.70.0070.01114.90
7.3.60.0030.01314.74
7.3.50.0070.01014.80
7.3.40.0030.01214.40
7.3.30.0060.00314.84
7.3.20.0060.00916.80
7.3.10.0060.00616.40
7.3.00.0040.01216.68
7.2.330.0070.01016.80
7.2.320.0060.01316.58
7.2.310.0070.01116.80
7.2.300.0130.00516.78
7.2.290.0120.00416.80
7.2.250.0110.00715.17
7.2.240.0100.01015.20
7.2.230.0030.01314.86
7.2.220.0030.00614.80
7.2.210.0000.01514.84
7.2.200.0040.00815.01
7.2.190.0070.00714.73
7.2.180.0100.00315.11
7.2.170.0040.00715.08
7.2.130.0050.00516.77
7.2.120.0030.01016.76
7.2.110.0000.01016.86
7.2.100.0070.00717.10
7.2.90.0030.00717.12
7.2.80.0100.00317.11
7.2.70.0040.00816.93
7.2.60.0040.00816.80
7.2.50.0080.00416.89
7.2.40.0000.01016.91
7.2.30.0080.00816.92
7.2.20.0030.00716.98
7.2.10.0080.00817.08
7.2.00.0050.00717.98
7.1.330.0080.00815.95
7.1.320.0060.00615.87
7.1.310.0040.01115.54
7.1.300.0080.00716.04
7.1.290.0070.00715.75
7.1.280.0000.01115.63
7.1.270.0000.01315.67
7.1.260.0030.01015.71
7.1.250.0090.00315.55
7.1.240.0030.01015.73
7.1.230.0040.01115.66
7.1.220.0070.00715.63
7.1.210.0040.00415.79
7.1.200.0060.00315.56
7.1.190.0000.01015.73
7.1.180.0040.00715.73
7.1.170.0040.00715.86
7.1.160.0090.00315.77
7.1.150.0070.00415.65
7.1.140.0000.01415.81
7.1.130.0030.00515.63
7.1.120.0000.01015.83
7.1.110.0040.00715.93
7.1.100.0020.00916.85
7.1.90.0040.01115.50
7.1.80.0000.00915.74
7.1.70.0050.00316.48
7.1.60.0060.01117.58
7.1.50.0080.00816.37
7.1.40.0080.00615.75
7.1.30.0080.00315.80
7.1.20.0040.00515.46
7.1.10.0110.00415.72
7.1.00.0030.02018.97
7.0.330.0040.00715.21
7.0.320.0130.00015.25
7.0.310.0040.01115.39
7.0.300.0080.00315.42
7.0.290.0100.00615.33
7.0.280.0060.00915.37
7.0.270.0060.00915.56
7.0.260.0080.00715.48
7.0.250.0030.00915.59
7.0.240.0060.00615.25
7.0.230.0000.01115.39
7.0.220.0030.01015.61
7.0.210.0070.00315.54
7.0.200.0040.00716.10
7.0.190.0110.00315.36
7.0.180.0120.00015.39
7.0.170.0060.00915.28
7.0.160.0030.00715.45
7.0.150.0070.00715.52
7.0.140.0070.03718.68
7.0.130.0030.00715.56
7.0.120.0060.00615.41
7.0.110.0060.00315.46
7.0.100.0030.00915.23
7.0.90.0030.00915.40
7.0.80.0060.00315.34
7.0.70.0000.00915.65
7.0.60.0100.02017.59
7.0.50.0050.03716.64
7.0.40.0050.02516.89
7.0.30.0170.03016.76
7.0.20.0120.02116.89
7.0.10.0050.04816.83
7.0.00.0080.03516.86
5.6.380.0090.00414.65
5.6.370.0060.00614.48
5.6.360.0030.00914.52
5.6.350.0090.00614.43
5.6.340.0030.00914.61
5.6.330.0030.01014.46
5.6.320.0100.00314.54
5.6.310.0060.00614.65
5.6.300.0030.00714.30
5.6.290.0110.00314.71
5.6.280.0070.03717.76
5.6.270.0070.00714.63
5.6.260.0030.00714.52
5.6.250.0060.00614.57
5.6.240.0130.00014.58
5.6.230.0000.01214.27
5.6.220.0000.01114.47
5.6.210.0030.02417.41
5.6.200.0080.03416.18
5.6.190.0120.03417.43
5.6.180.0150.02517.31
5.6.170.0200.04217.34
5.6.160.0060.02517.59
5.6.150.0070.04116.30
5.6.140.0040.02316.23
5.6.130.0070.04216.18
5.6.120.0050.02717.72
5.6.110.0070.04217.76
5.6.100.0050.02817.73
5.6.90.0060.02917.44
5.6.80.0110.02017.47
5.6.70.0030.00814.45
5.6.60.0100.00314.39
5.6.50.0000.01114.19
5.6.40.0060.00614.02
5.6.30.0060.00614.24
5.6.20.0060.00914.06
5.6.10.0080.00314.24
5.6.00.0060.00614.06
5.5.380.0050.00311.18
5.5.370.0060.00011.27
5.5.360.0030.00611.18
5.5.350.0210.03715.77
5.5.340.0050.03314.53
5.5.330.0050.04515.78
5.5.320.0130.03315.77
5.5.310.0170.04215.71
5.5.300.0050.03714.58
5.5.290.0070.04214.63
5.5.280.0040.02116.14
5.5.270.0060.04015.98
5.5.260.0060.02615.97
5.5.250.0060.03515.92
5.5.240.0120.03915.77
5.5.230.0070.00311.18
5.5.220.0080.00011.18
5.5.210.0030.00311.18
5.5.200.0000.00811.18
5.5.190.0030.00611.18
5.5.180.0030.00311.18
5.5.170.0040.00411.18
5.5.160.0050.00311.18
5.5.150.0060.00311.18
5.5.140.0060.00311.18
5.5.130.0030.00511.18
5.5.120.0030.00311.18
5.5.110.0000.00811.18
5.5.100.0110.00011.18
5.5.90.0000.00611.25
5.5.80.0000.01111.18
5.5.70.0060.00011.18
5.5.60.0000.00611.18
5.5.50.0030.00711.20
5.5.40.0070.00311.18
5.5.30.0000.01111.18
5.5.20.0040.00811.18
5.5.10.0030.00711.18
5.5.00.0030.00311.27
5.4.450.0270.03915.21
5.4.440.0480.02815.21
5.4.430.0380.03015.13
5.4.420.0420.03215.34
5.4.410.0030.03015.25
5.4.400.0470.03315.18
5.4.390.0500.02914.97
5.4.380.0080.03114.95
5.4.370.0100.02714.94
5.4.360.0070.02414.92
5.4.350.0050.02111.57
5.4.340.0070.02511.57
5.4.330.0030.00811.18
5.4.320.0040.02911.82
5.4.310.0070.01811.81
5.4.300.0070.02411.81
5.4.290.0050.02911.81
5.4.280.0060.02211.76
5.4.270.0070.02511.76
5.4.260.0050.02811.76
5.4.250.0040.02511.76
5.4.240.0050.02715.05
5.4.230.0060.03015.10
5.4.220.0060.03115.02
5.4.210.0140.03614.97
5.4.200.0070.02514.98
5.4.190.0030.03015.08
5.4.180.0090.02315.01
5.4.170.0050.02815.02
5.4.160.0060.02814.95
5.4.150.0050.03014.93
5.4.140.0050.02913.73
5.4.130.0040.02913.71
5.4.120.0030.02913.81
5.4.110.0080.02613.85
5.4.100.0020.03013.75
5.4.90.0090.02513.76
5.4.80.0080.03013.78
5.4.70.0130.01813.79
5.4.60.0070.02413.80
5.4.50.0080.02313.79
5.4.40.0050.02913.81
5.4.30.0040.03113.78
5.4.20.0060.02513.77
5.4.10.0120.02713.73
5.4.00.0060.02813.44
5.3.290.0040.02311.99
5.3.280.0050.03212.88
5.3.270.0030.03212.90
5.3.260.0080.02812.90
5.3.250.0040.03112.90
5.3.240.0020.03212.83
5.3.230.0080.02612.91
5.3.220.0080.02812.88
5.3.210.0070.04012.81
5.3.200.0080.02712.87
5.3.190.0040.02912.81
5.3.180.0000.03112.88
5.3.170.0070.02412.88
5.3.160.0030.03012.72
5.3.150.0100.02312.75
5.3.140.0060.02512.71
5.3.130.0080.02612.86
5.3.120.0080.02512.71
5.3.110.0070.02612.78
5.3.100.0080.02512.61
5.3.90.0050.03212.60
5.3.80.0050.03212.61
5.3.70.0030.02812.52
5.3.60.0100.02012.66
5.3.50.0040.02712.48
5.3.40.0000.03112.41
5.3.30.0060.02312.50
5.3.20.0020.02912.37
5.3.10.0030.02712.49
5.3.00.0030.02712.33
5.2.170.0030.02211.12
5.2.160.0060.02511.17
5.2.150.0020.03211.17
5.2.140.0110.01711.12
5.2.130.0050.02011.10
5.2.120.0080.01511.15
5.2.110.0100.01511.14
5.2.100.0020.02311.14
5.2.90.0010.02111.08
5.2.80.0010.02811.18
5.2.70.0030.02511.13
5.2.60.0060.02011.03
5.2.50.0020.02511.11
5.2.40.0050.03111.07
5.2.30.0020.02511.08
5.2.20.0030.02311.07
5.2.10.0050.02511.06
5.2.00.0050.02810.87
5.1.60.0010.02010.56
5.1.50.0050.01710.51
5.1.40.0040.01910.53
5.1.30.0070.01710.79
5.1.20.0040.02010.79
5.1.10.0030.02210.64
5.1.00.0020.02310.65
5.0.50.0000.0189.79
5.0.40.0060.0129.83
5.0.30.0030.0219.72
5.0.20.0020.0139.71
5.0.10.0080.0109.66
5.0.00.0040.0209.68
4.4.90.0000.0198.48
4.4.80.0050.0148.48
4.4.70.0020.0128.47
4.4.60.0030.0118.48
4.4.50.0060.0088.51
4.4.40.0010.0198.48
4.4.30.0070.0088.50
4.4.20.0030.0118.46
4.4.10.0000.0148.50
4.4.00.0020.0208.50
4.3.110.0050.0158.42
4.3.100.0010.0118.39
4.3.90.0020.0128.47
4.3.80.0020.0178.49
4.3.70.0030.0128.44
4.3.60.0010.0118.38
4.3.50.0020.0118.42
4.3.40.0020.0168.37
4.3.30.0030.0107.82
4.3.20.0000.0157.81
4.3.10.0040.0107.74
4.3.00.0050.0129.28

preferences:
39.15 ms | 401 KiB | 5 Q