3v4l.org

run code in 300+ PHP versions simultaneously
<?php $contact_rec = [ "bob" => ["email" => "bob@example.com"], "sara" => ["email" => "sara@example.com"] ]; $contact_rec[0]=""; var_dump($contact_rec) ?>

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)
8.3.60.0090.00916.61
8.3.50.0050.01022.05
8.3.40.0070.01018.80
8.3.30.0140.00018.96
8.3.20.0030.00520.09
8.3.10.0040.00423.66
8.3.00.0060.00317.90
8.2.180.0120.00616.38
8.2.170.0040.01122.96
8.2.160.0100.01020.47
8.2.150.0050.00224.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0040.00419.36
8.2.110.0030.00622.08
8.2.100.0120.00020.53
8.2.90.0000.00819.22
8.2.80.0030.00517.97
8.2.70.0000.00817.63
8.2.60.0050.00318.04
8.2.50.0040.00418.07
8.2.40.0060.00318.22
8.2.30.0040.00418.30
8.2.20.0070.00017.61
8.2.10.0000.00718.16
8.2.00.0080.00019.41
8.1.280.0070.00725.92
8.1.270.0040.00423.92
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00318.82
8.1.230.0080.00318.77
8.1.220.0000.00717.74
8.1.210.0080.00018.77
8.1.200.0030.00617.25
8.1.190.0040.00417.23
8.1.180.0040.00418.10
8.1.170.0000.00918.52
8.1.160.0050.00221.93
8.1.150.0050.00218.66
8.1.140.0050.00217.39
8.1.130.0000.00717.73
8.1.120.0040.00417.40
8.1.110.0070.00017.43
8.1.100.0000.00717.36
8.1.90.0040.00417.40
8.1.80.0040.00417.37
8.1.70.0000.00717.29
8.1.60.0000.00817.39
8.1.50.0000.00917.46
8.1.40.0050.00317.34
8.1.30.0040.00417.57
8.1.20.0030.00617.64
8.1.10.0000.00817.48
8.1.00.0000.00717.45
8.0.300.0040.00418.77
8.0.290.0000.00716.63
8.0.280.0000.00718.36
8.0.270.0050.00217.06
8.0.260.0000.00617.21
8.0.250.0000.00816.80
8.0.240.0000.00816.91
8.0.230.0040.00416.71
8.0.220.0040.00416.75
8.0.210.0050.00216.77
8.0.200.0060.00016.80
8.0.190.0050.00216.89
8.0.180.0030.00716.84
8.0.170.0040.00416.73
8.0.160.0020.00516.76
8.0.150.0030.00516.73
8.0.140.0050.00316.63
8.0.130.0000.00713.25
8.0.120.0040.00416.67
8.0.110.0040.00416.84
8.0.100.0000.00716.59
8.0.90.0080.00016.81
8.0.80.0090.01216.80
8.0.70.0050.00216.93
8.0.60.0070.00016.70
8.0.50.0070.00016.89
8.0.30.0090.01016.95
8.0.20.0140.00917.40
8.0.10.0030.00616.82
8.0.00.0120.00716.57
7.4.330.0050.00015.00
7.4.320.0000.00616.52
7.4.300.0060.00016.57
7.4.290.0030.00316.38
7.4.280.0070.00016.50
7.4.270.0030.00416.38
7.4.260.0000.00716.54
7.4.250.0040.00416.38
7.4.240.0000.00716.52
7.4.230.0030.00316.59
7.4.220.0040.02016.40
7.4.210.0070.00716.61
7.4.200.0050.00316.42
7.4.160.0070.01416.33
7.4.150.0120.00617.40
7.4.140.0100.01017.86
7.4.130.0070.00916.49
7.4.120.0080.00916.28
7.4.110.0060.01116.57
7.4.100.0040.01316.49
7.4.90.0100.00716.35
7.4.80.0130.00519.39
7.4.70.0100.00616.45
7.4.60.0170.00716.35
7.4.50.0040.00416.63
7.4.40.0120.00616.52
7.4.30.0080.00816.43
7.4.10.0070.00715.01
7.4.00.0070.00914.99
7.3.330.0000.00513.03
7.3.320.0000.00512.91
7.3.310.0040.00416.04
7.3.300.0000.00616.18
7.3.290.0080.01216.16
7.3.280.0080.00916.23
7.3.270.0130.01017.40
7.3.260.0090.01116.35
7.3.250.0100.01316.44
7.3.240.0080.00816.49
7.3.230.0120.00416.63
7.3.210.0070.01116.39
7.3.200.0100.00719.39
7.3.190.0170.00316.56
7.3.180.0000.01716.31
7.3.170.0140.00316.27
7.3.160.0110.00716.25
7.3.130.0090.00914.80
7.3.120.0060.01014.87
7.3.110.0100.00814.81
7.3.100.0070.00614.77
7.3.90.0100.00514.89
7.3.80.0060.00714.68
7.3.70.0050.00814.78
7.3.60.0060.00714.60
7.3.50.0020.01014.53
7.3.40.0050.00814.66
7.3.30.0070.00514.76
7.3.20.0030.00916.51
7.3.10.0080.00516.52
7.3.00.0060.00916.56
7.2.330.0080.00816.69
7.2.320.0120.00616.38
7.2.310.0120.00916.18
7.2.300.0140.00316.34
7.2.290.0100.01316.55
7.2.260.0060.01215.17
7.2.250.0060.01214.85
7.2.240.0060.01014.72
7.2.230.0040.01114.95
7.2.220.0090.00714.82
7.2.210.0110.00214.84
7.2.200.0060.00814.85
7.2.190.0060.00714.73
7.2.180.0050.00914.96
7.2.170.0020.01114.89
7.2.160.0090.00314.96
7.2.150.0070.00516.58
7.2.140.0070.00516.88
7.2.130.0080.01016.71
7.2.120.0070.00716.62
7.2.110.0070.00616.92
7.2.100.0070.00816.54
7.2.90.0090.00516.78
7.2.80.0020.01216.75
7.2.70.0070.00816.77
7.2.60.0060.00716.57
7.2.50.0090.00916.78
7.2.40.0030.01216.82
7.2.30.0030.01116.85
7.2.20.0050.00916.66
7.2.10.0040.01116.75
7.2.00.0030.00917.33
7.1.330.0030.01015.70
7.1.320.0070.00815.68
7.1.310.0060.00715.57
7.1.300.0050.00815.65
7.1.290.0060.00615.82
7.1.280.0030.00915.71
7.1.270.0020.01115.63
7.1.260.0080.00715.64
7.1.250.0060.00715.78
7.1.240.0070.00715.64
7.1.230.0030.01015.43
7.1.220.0070.00715.66
7.1.210.0070.00315.55
7.1.200.0060.00615.57
7.1.190.0040.00715.74
7.1.180.0000.01715.64
7.1.170.0070.01115.61
7.1.160.0070.00715.52
7.1.150.0070.00715.78
7.1.140.0100.00615.71
7.1.130.0090.00615.72
7.1.120.0060.00915.83
7.1.110.0070.00715.73
7.1.100.0050.00516.75
7.1.90.0040.01115.91
7.1.80.0100.00015.71
7.1.70.0110.00516.40
7.1.60.0080.01017.82
7.1.50.0050.01316.26
7.1.40.0040.00415.70
7.1.30.0060.00615.70
7.1.20.0080.00415.93
7.1.10.0040.01215.82
7.1.00.0000.04319.08
7.0.330.0080.00315.21
7.0.320.0000.00815.57
7.0.310.0040.00815.43
7.0.300.0090.00615.11
7.0.290.0030.00915.18
7.0.280.0060.00615.16
7.0.270.0000.01515.36
7.0.260.0070.00715.39
7.0.250.0080.00815.54
7.0.240.0040.00715.19
7.0.230.0060.00915.53
7.0.220.0040.00915.30
7.0.210.0070.01015.57
7.0.200.0030.00915.98
7.0.190.0080.00415.34
7.0.180.0000.01115.44
7.0.170.0080.00415.39
7.0.160.0070.00715.25
7.0.150.0000.01315.25
7.0.140.0070.03718.66
7.0.130.0100.00315.00
7.0.120.0000.01615.37
7.0.110.0060.00615.48
7.0.100.0040.00415.49
7.0.90.0040.01115.61
7.0.80.0070.00715.17
7.0.70.0050.03018.41
7.0.60.0070.03518.52
7.0.50.0060.03618.68
7.0.40.0060.04516.76
7.0.30.0080.03216.76
7.0.20.0030.04716.71
7.0.10.0060.04216.76
7.0.00.0050.03316.79
5.6.400.0060.01314.52
5.6.390.0050.00514.21
5.6.380.0140.00014.64
5.6.370.0030.00614.41
5.6.360.0140.00414.48
5.6.350.0080.00013.97
5.6.340.0090.00614.27
5.6.330.0030.00614.45
5.6.320.0030.01014.17
5.6.310.0000.01514.21
5.6.300.0060.00913.98
5.6.290.0030.01014.57
5.6.280.0030.04017.69
5.6.270.0030.00914.70
5.6.260.0030.01014.31
5.6.250.0040.00814.41
5.6.240.0030.00914.21
5.6.230.0030.00714.41
5.6.220.0060.03817.45
5.6.210.0080.04217.40
5.6.200.0050.03817.73
5.6.190.0070.04317.79
5.6.180.0000.05317.57
5.6.170.0050.03317.70
5.6.160.0020.02417.52
5.6.150.0060.02817.69
5.6.140.0060.04417.69
5.6.130.0070.04517.87
5.6.120.0100.02317.66
5.6.110.0110.04317.68
5.6.100.0090.03617.64
5.6.90.0070.04117.57
5.6.80.0050.04217.32
5.6.70.0070.03217.43
5.6.60.0020.03917.19
5.6.50.0090.03217.20
5.6.40.0030.04717.24
5.6.30.0080.04517.40
5.6.20.0050.04617.50
5.6.10.0030.04617.32
5.6.00.0100.04017.25
5.5.380.0090.00614.46
5.5.370.0040.01114.01
5.5.360.0080.04217.44
5.5.350.0070.04217.39
5.5.340.0070.03317.47
5.5.330.0020.04817.60
5.5.320.0050.04617.65
5.5.310.0130.02517.59
5.5.300.0080.02317.55
5.5.290.0050.04517.61
5.5.280.0050.02917.55
5.5.270.0050.04517.60
5.5.260.0080.03617.53
5.5.250.0100.03817.42
5.5.240.0040.04617.27
5.5.230.0080.04017.33
5.5.220.0080.02817.18
5.5.210.0070.04017.13
5.5.200.0080.04117.26
5.5.190.0080.03617.29
5.5.180.0080.03717.25
5.5.170.0080.00414.13
5.5.160.0040.03117.14
5.5.150.0030.04717.01
5.5.140.0030.04017.22
5.5.130.0040.03217.12
5.5.120.0090.04317.26
5.5.110.0110.03517.20
5.5.100.0040.03417.05
5.5.90.0020.04317.09
5.5.80.0080.03817.04
5.5.70.0020.03816.97
5.5.60.0030.03617.12
5.5.50.0050.04416.88
5.5.40.0100.03817.17
5.5.30.0030.04517.02
5.5.20.0050.04417.11
5.5.10.0050.03517.19
5.5.00.0080.04217.09
5.4.450.0020.04715.09
5.4.440.0030.04315.17
5.4.430.0040.04315.18
5.4.420.0030.03015.30
5.4.410.0020.04215.15
5.4.400.0030.04214.88
5.4.390.0050.04215.00
5.4.380.0070.03715.11
5.4.370.0030.04114.89
5.4.360.0050.02814.96
5.4.350.0020.04315.20
5.4.340.0060.03814.88
5.4.330.0060.00311.14
5.4.320.0050.03915.05
5.4.310.0050.04015.04
5.4.300.0000.04414.95
5.4.290.0030.03014.79
5.4.280.0020.03414.79
5.4.270.0020.04214.92
5.4.260.0070.04015.06
5.4.250.0050.02714.75
5.4.240.0020.04314.88
5.4.230.0030.03914.83
5.4.220.0050.04214.82
5.4.210.0030.03114.85
5.4.200.0000.03614.98
5.4.190.0030.02315.09
5.4.180.0050.03615.06
5.4.170.0010.04315.04
5.4.160.0030.04314.98
5.4.150.0030.03114.88
5.4.140.0050.03813.59
5.4.130.0030.02113.62
5.4.120.0050.04013.70
5.4.110.0020.04013.57
5.4.100.0100.03013.62
5.4.90.0030.04113.64
5.4.80.0030.04013.75
5.4.70.0000.03513.56
5.4.60.0040.03613.59
5.4.50.0030.03113.61
5.4.40.0000.03913.58
5.4.30.0030.04013.64
5.4.20.0030.04013.63
5.4.10.0050.04113.60
5.4.00.0050.03713.41
5.3.290.0000.04512.39
5.3.280.0050.04012.24
5.3.270.0070.04012.24
5.3.260.0050.02812.26
5.3.250.0020.04212.34
5.3.240.0060.03812.31
5.3.230.0030.03812.31
5.3.220.0030.04012.31
5.3.210.0060.03112.31
5.3.200.0030.04112.27
5.3.190.0000.04012.31
5.3.180.0040.03612.43
5.3.170.0030.03812.38
5.3.160.0020.03012.38
5.3.150.0070.03612.41
5.3.140.0060.03612.35
5.3.130.0080.03812.38
5.3.120.0050.04212.27
5.3.110.0060.03812.42
5.3.100.0050.04012.10
5.3.90.0030.03712.15
5.3.80.0040.02412.01
5.3.70.0050.03811.95
5.3.60.0030.03812.09
5.3.50.0020.04211.98
5.3.40.0060.02911.99
5.3.30.0020.04212.09
5.3.20.0080.02311.91
5.3.10.0020.03811.76
5.3.00.0020.04111.79
5.2.170.0030.05712.27
5.2.160.0100.05012.27
5.2.150.0000.03312.27
5.2.140.0000.06312.27
5.2.130.0030.02712.27
5.2.120.0030.04012.27
5.2.110.0000.06012.27
5.2.100.0070.02712.27
5.2.90.0000.05012.27
5.2.80.0030.05012.27
5.2.70.0070.05012.27
5.2.60.0000.06312.27
5.2.50.0000.06712.27
5.2.40.0000.06012.27
5.2.30.0030.05312.27
5.2.20.0070.06012.27
5.2.10.0000.06012.27
5.2.00.0030.04312.27
5.1.60.0030.04312.27
5.1.50.0070.04712.27
5.1.40.0000.04712.27
5.1.30.0000.06312.27
5.1.20.0030.05012.27
5.1.10.0030.05712.27
5.1.00.0030.05712.27
5.0.50.0030.04312.27
5.0.40.0030.04012.27
5.0.30.0070.05012.27
5.0.20.0030.04012.27
5.0.10.0030.03712.27
5.0.00.0000.05712.27
4.4.90.0000.03712.27
4.4.80.0030.02712.27
4.4.70.0030.03312.27
4.4.60.0030.03712.27
4.4.50.0000.03712.27
4.4.40.0000.02712.27
4.4.30.0000.03712.27
4.4.20.0070.03012.27
4.4.10.0030.03312.27
4.4.00.0030.05012.27
4.3.110.0000.02712.27
4.3.100.0030.02712.27
4.3.90.0000.03312.27
4.3.80.0030.05012.27
4.3.70.0000.03012.27
4.3.60.0000.03312.27
4.3.50.0030.03312.27
4.3.40.0000.05312.27
4.3.30.0000.03012.27
4.3.20.0030.02712.27
4.3.10.0000.03712.27
4.3.00.0000.03712.27

preferences:
42.02 ms | 401 KiB | 5 Q