3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a['attachment'] = 'hi'; $a[472504636] = 'ryat'; unset($a['attachment']); //unset($a[1425328718]); var_dump($a['attachment']);

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)
8.3.40.0160.00318.79
8.3.30.0030.01018.92
8.3.20.0040.00420.27
8.3.10.0070.00721.96
8.3.00.0060.00322.39
8.2.170.0100.01022.96
8.2.160.0140.00420.94
8.2.150.0040.01124.18
8.2.140.0080.00024.66
8.2.130.0100.00726.16
8.2.120.0040.00419.49
8.2.110.0060.00320.14
8.2.100.0040.00817.89
8.2.90.0040.00419.27
8.2.80.0080.00017.97
8.2.70.0050.00317.75
8.2.60.0000.00817.93
8.2.50.0030.00618.07
8.2.40.0060.00318.28
8.2.30.0040.00418.12
8.2.20.0070.00017.77
8.2.10.0000.00817.75
8.2.00.0040.00417.61
8.1.270.0040.00422.19
8.1.260.0080.00026.35
8.1.250.0090.00328.09
8.1.240.0090.00421.84
8.1.230.0080.00322.65
8.1.220.0030.00517.74
8.1.210.0050.00318.77
8.1.200.0030.00617.35
8.1.190.0050.00217.53
8.1.180.0000.00918.62
8.1.170.0000.00918.50
8.1.160.0040.00421.88
8.1.150.0040.00418.53
8.1.140.0040.00417.33
8.1.130.0070.00017.82
8.1.120.0030.00717.28
8.1.110.0000.00817.29
8.1.100.0000.00817.38
8.1.90.0040.00417.39
8.1.80.0000.00717.35
8.1.70.0070.00017.41
8.1.60.0000.00817.51
8.1.50.0000.00817.34
8.1.40.0040.00417.34
8.1.30.0020.00517.45
8.1.20.0090.00017.52
8.1.10.0000.00717.36
8.1.00.0000.00917.23
8.0.300.0020.00518.77
8.0.290.0000.00716.91
8.0.280.0030.00318.32
8.0.270.0030.00317.12
8.0.260.0000.00716.71
8.0.250.0000.00616.79
8.0.240.0040.00416.78
8.0.230.0070.00016.87
8.0.220.0030.00316.69
8.0.210.0000.00716.68
8.0.200.0030.00316.89
8.0.190.0080.00016.91
8.0.180.0070.00016.67
8.0.170.0040.00416.88
8.0.160.0000.00716.86
8.0.150.0050.00216.80
8.0.140.0070.00016.84
8.0.130.0000.00513.24
8.0.120.0040.00416.77
8.0.110.0040.00416.72
8.0.100.0030.00416.81
8.0.90.0070.00016.82
8.0.80.0000.01616.86
8.0.70.0030.00516.78
8.0.60.0070.00016.71
8.0.50.0040.00416.63
8.0.30.0110.00817.12
8.0.20.0100.00817.40
8.0.10.0000.00716.91
8.0.00.0050.01516.44
7.4.330.0020.00215.00
7.4.320.0030.00316.45
7.4.300.0030.00316.45
7.4.290.0030.00316.64
7.4.280.0000.00616.54
7.4.270.0040.00416.64
7.4.260.0000.00716.50
7.4.250.0040.00416.60
7.4.240.0050.00216.57
7.4.230.0000.00716.52
7.4.220.0030.01516.56
7.4.210.0060.01116.55
7.4.200.0070.00016.29
7.4.190.0000.00816.66
7.4.160.0120.00316.45
7.4.150.0100.00717.40
7.4.140.0130.00717.86
7.4.130.0120.00616.49
7.4.120.0100.01216.38
7.4.110.0040.01316.43
7.4.100.0110.00716.40
7.4.90.0140.00316.45
7.4.80.0080.01119.39
7.4.70.0120.00616.51
7.4.60.0060.01016.58
7.4.50.0070.00016.30
7.4.40.0130.00322.77
7.4.30.0100.00716.38
7.4.10.0100.00714.80
7.4.00.0100.00614.74
7.3.330.0050.00013.30
7.3.320.0030.00313.18
7.3.310.0080.00016.29
7.3.300.0030.00316.30
7.3.290.0110.00316.42
7.3.280.0070.00916.40
7.3.270.0110.01117.40
7.3.260.0130.00316.60
7.3.250.0130.00416.45
7.3.240.0100.00716.41
7.3.230.0030.01816.46
7.3.210.0080.00816.30
7.3.200.0110.00719.39
7.3.190.0090.00616.35
7.3.180.0090.00616.35
7.3.170.0090.00916.54
7.3.160.0030.01316.38
7.3.130.0070.01014.93
7.3.120.0070.00914.81
7.3.110.0140.00414.84
7.3.100.0060.01014.90
7.3.90.0100.00314.68
7.3.80.0030.00914.82
7.3.70.0030.01014.64
7.3.60.0040.01214.61
7.3.50.0070.00714.71
7.3.40.0070.00714.71
7.3.30.0030.01014.86
7.3.20.0070.00716.54
7.3.10.0030.01316.36
7.3.00.0130.00316.80
7.2.330.0120.00616.54
7.2.320.0130.00316.72
7.2.310.0040.02016.66
7.2.300.0090.01216.42
7.2.290.0100.00716.67
7.2.260.0100.00715.16
7.2.250.0040.01415.00
7.2.240.0030.01015.00
7.2.230.0100.00714.95
7.2.220.0000.01614.82
7.2.210.0030.00914.85
7.2.200.0060.00614.84
7.2.190.0070.01415.16
7.2.180.0050.00514.89
7.2.170.0030.01315.04
7.2.160.0040.01114.67
7.2.150.0040.00916.85
7.2.140.0100.01016.87
7.2.130.0060.01016.84
7.2.120.0040.01116.88
7.2.110.0090.00616.72
7.2.100.0070.00416.55
7.2.90.0070.01017.05
7.2.80.0040.00716.73
7.2.70.0070.00716.73
7.2.60.0050.00616.81
7.2.50.0030.00717.02
7.2.40.0040.01016.76
7.2.30.0030.00916.97
7.2.20.0110.00716.82
7.2.10.0060.00616.73
7.2.00.0070.00316.96
7.1.330.0040.01115.65
7.1.320.0030.01315.68
7.1.310.0060.00615.73
7.1.300.0030.01715.85
7.1.290.0010.00915.75
7.1.280.0000.01015.80
7.1.270.0120.00315.82
7.1.260.0110.00715.75
7.1.250.0070.01015.82
7.1.240.0080.00415.62
7.1.230.0070.00715.75
7.1.220.0070.00715.66
7.1.210.0000.01215.85
7.1.200.0090.00215.77
7.1.190.0000.00915.83
7.1.180.0040.01215.54
7.1.170.0040.01115.93
7.1.160.0060.00915.57
7.1.150.0080.00615.61
7.1.140.0060.00915.85
7.1.130.0070.00715.64
7.1.120.0100.00315.80
7.1.110.0110.00315.88
7.1.100.0000.01015.60
7.1.90.0070.00715.60
7.1.80.0060.00615.71
7.1.70.0040.00616.48
7.1.60.0100.00817.89
7.1.50.0060.01116.40
7.1.40.0030.00915.63
7.1.30.0030.01015.53
7.1.20.0060.00915.74
7.1.10.0000.01115.87
7.1.00.0040.04219.04
7.0.330.0060.00615.41
7.0.320.0030.01315.35
7.0.310.0030.00915.34
7.0.300.0030.01015.41
7.0.290.0060.01015.29
7.0.280.0030.00615.48
7.0.270.0050.00515.59
7.0.260.0110.00015.35
7.0.250.0120.00315.42
7.0.240.0060.00615.49
7.0.230.0060.00315.10
7.0.220.0100.00015.59
7.0.210.0030.01015.63
7.0.200.0060.00615.90
7.0.190.0070.00715.17
7.0.180.0070.00315.52
7.0.170.0110.00015.42
7.0.160.0060.00615.36
7.0.150.0030.01015.37
7.0.140.0130.03318.68
7.0.130.0060.00615.47
7.0.120.0000.01115.24
7.0.110.0350.04017.69
7.0.100.0360.02317.70
7.0.90.0320.04017.73
7.0.80.0320.03917.74
7.0.70.0300.03717.68
7.0.60.0280.04117.59
7.0.50.0320.04317.90
7.0.40.0110.02316.87
7.0.30.0060.03016.60
7.0.20.0070.04316.79
7.0.10.0060.03616.82
7.0.00.0070.04616.86
5.6.400.0090.00914.42
5.6.390.0040.01114.46
5.6.380.0100.00714.02
5.6.370.0040.01114.63
5.6.360.0030.01014.63
5.6.350.0000.00914.37
5.6.340.0080.00414.34
5.6.330.0100.00314.53
5.6.320.0070.00414.25
5.6.310.0030.01014.21
5.6.300.0000.00914.04
5.6.290.0080.00814.09
5.6.280.0070.03817.56
5.6.270.0000.01614.13
5.6.260.0060.04217.58
5.6.250.0050.02517.66
5.6.240.0090.02617.45
5.6.230.0070.02817.55
5.6.220.0100.03817.51
5.6.210.0090.04317.41
5.6.200.0080.03017.68
5.6.190.0090.03417.75
5.6.180.0110.03017.69
5.6.170.0060.04417.71
5.6.160.0020.05017.86
5.6.150.0050.04117.55
5.6.140.0060.02917.59
5.6.130.0050.04217.47
5.6.120.0070.04417.65
5.6.110.0070.04017.81
5.6.100.0100.03717.63
5.6.90.0100.01817.76
5.6.80.0050.02317.29
5.6.70.0040.02917.33
5.6.60.0060.02317.37
5.6.50.0070.02017.37
5.6.40.0050.02417.45
5.6.30.0020.02717.21
5.6.20.0110.03217.34
5.6.10.0080.03417.37
5.6.00.0050.04317.38
5.5.380.0060.02517.22
5.5.370.0050.04217.22
5.5.360.0040.04217.41
5.5.350.0030.03717.42
5.5.340.0080.04317.39
5.5.330.0050.04017.49
5.5.320.0100.04017.57
5.5.310.0100.04217.52
5.5.300.0070.04117.43
5.5.290.0090.04117.47
5.5.280.0030.04217.48
5.5.270.0100.04317.69
5.5.260.0030.02717.47
5.5.250.0050.02217.40
5.5.240.0030.02117.20
5.5.230.0050.02517.19
5.5.220.0050.02317.31
5.5.210.0060.02217.23
5.5.200.0050.02917.05
5.5.190.0030.02517.33
5.5.180.0030.04017.30
5.5.170.0030.01014.14
5.5.160.0030.03917.10
5.5.150.0050.02217.16
5.5.140.0080.02117.33
5.5.130.0070.02817.29
5.5.120.0050.03417.19
5.5.110.0050.02217.14
5.5.100.0040.02617.16
5.5.90.0020.02617.26
5.5.80.0050.02017.24
5.5.70.0030.02317.07
5.5.60.0080.01817.22
5.5.50.0070.02717.21
5.5.40.0050.02317.26
5.5.30.0050.02517.29
5.5.20.0080.02017.22
5.5.10.0080.01817.02
5.5.00.0070.03617.02
5.4.450.0050.04015.10
5.4.440.0080.03715.20
5.4.430.0060.03815.24
5.4.420.0110.04015.27
5.4.410.0020.03615.22
5.4.400.0080.03215.12
5.4.390.0000.02314.88
5.4.380.0060.02814.88
5.4.370.0080.03015.04
5.4.360.0020.04014.88
5.4.350.0050.02214.86
5.4.340.0050.03715.03
5.4.330.0070.00310.73
5.4.320.0040.03715.06
5.4.310.0020.03015.08
5.4.300.0050.02014.98
5.4.290.0130.02515.01
5.4.280.0060.02014.91
5.4.270.0030.02015.07
5.4.260.0070.02214.95
5.4.250.0020.02814.93
5.4.240.0060.03015.12
5.4.230.0030.02314.88
5.4.220.0080.03514.98
5.4.210.0050.02115.03
5.4.200.0020.02114.90
5.4.190.0030.03514.97
5.4.180.0050.02114.92
5.4.170.0070.02514.85
5.4.160.0060.02614.96
5.4.150.0050.04415.13
5.4.140.0060.02013.63
5.4.130.0020.02013.70
5.4.120.0050.02513.85
5.4.110.0050.02513.65
5.4.100.0030.02013.72
5.4.90.0030.02013.75
5.4.80.0000.02413.53
5.4.70.0120.02513.74
5.4.60.0000.02513.80
5.4.50.0060.02013.66
5.4.40.0020.03913.67
5.4.30.0050.02313.62
5.4.20.0020.03013.69
5.4.10.0050.04213.70
5.4.00.0030.04213.19
5.3.290.0030.03812.52
5.3.280.0020.02812.49
5.3.270.0030.02012.45
5.3.260.0060.02712.41
5.3.250.0020.02512.48
5.3.240.0020.02212.41
5.3.230.0000.02212.38
5.3.220.0050.02212.41
5.3.210.0040.02112.51
5.3.200.0000.02412.52
5.3.190.0030.03812.55
5.3.180.0030.02012.48
5.3.170.0020.03712.41
5.3.160.0030.02112.59
5.3.150.0030.03012.35
5.3.140.0050.03512.36
5.3.130.0070.03912.42
5.3.120.0090.04012.39
5.3.110.0060.04112.36
5.3.100.0100.03712.20
5.3.90.0080.03212.21
5.3.80.0050.03812.10
5.3.70.0070.03712.20
5.3.60.0030.02812.24
5.3.50.0080.03712.21
5.3.40.0070.03112.17
5.3.30.0050.03512.17
5.3.20.0050.03312.01
5.3.10.0080.02611.80
5.3.00.0110.03311.82
5.2.170.0070.05712.84
5.2.160.0030.06012.84
5.2.150.0130.05012.84
5.2.140.0030.06312.84
5.2.130.0030.06012.84
5.2.120.0070.04012.84
5.2.110.0070.06012.84
5.2.100.0070.06312.84
5.2.90.0070.03312.84
5.2.80.0070.05312.84
5.2.70.0030.03712.84
5.2.60.0070.06012.84
5.2.50.0070.05712.84
5.2.40.0000.06312.84
5.2.30.0070.06012.84
5.2.20.0100.05312.84
5.2.10.0100.05012.84
5.2.00.0030.03712.84
5.1.60.0030.05012.84
5.1.50.0030.04012.84
5.1.40.0070.04712.84
5.1.30.0000.04712.84
5.1.20.0030.04312.84
5.1.10.0070.04712.84
5.1.00.0070.02712.84
5.0.50.0070.04012.84
5.0.40.0070.04012.84
5.0.30.0030.07012.84
5.0.20.0030.04312.84
5.0.10.0030.04012.84
5.0.00.0030.04012.84
4.4.90.0030.03312.84
4.4.80.0130.02312.84
4.4.70.0070.03312.84
4.4.60.0070.03012.84
4.4.50.0100.02712.84
4.4.40.0030.04012.84
4.4.30.0030.02012.84
4.4.20.0000.03712.84
4.4.10.0000.01712.84
4.4.00.0030.05712.84
4.3.110.0070.03012.84
4.3.100.0030.02312.84
4.3.90.0070.03012.84
4.3.80.0070.04712.84
4.3.70.0000.02712.84
4.3.60.0030.01712.84
4.3.50.0000.03712.84
4.3.40.0000.02712.84
4.3.30.0000.03712.84
4.3.20.0000.03712.84
4.3.10.0070.03012.84
4.3.00.0030.03312.84

preferences:
45.36 ms | 400 KiB | 5 Q