3v4l.org

run code in 300+ PHP versions simultaneously
<?php $user = ['admin', (string)time()]; $a=&$user; echo serialize($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)
7.3.10.0120.00616.31
7.3.00.0080.00616.75
7.2.130.0050.01016.87
7.2.120.0050.01116.89
7.2.110.0080.00616.69
7.2.100.0040.00816.82
7.2.90.0060.00916.95
7.2.80.0030.01016.88
7.2.70.0060.00816.77
7.2.60.0060.01116.83
7.2.50.0110.00316.92
7.2.40.0070.00516.55
7.2.30.0050.00816.90
7.2.20.0060.00916.90
7.2.10.0120.00216.71
7.2.00.0090.00717.76
7.1.250.0110.00415.68
7.1.240.0090.00615.79
7.1.230.0060.00615.76
7.1.220.0070.00715.79
7.1.210.0080.01115.70
7.1.200.0080.00615.37
7.1.190.0000.01015.71
7.1.180.0060.00915.85
7.1.170.0060.00615.50
7.1.160.0030.01015.60
7.1.150.0070.00715.64
7.1.140.0120.00315.79
7.1.130.0030.01015.47
7.1.120.0000.01215.39
7.1.110.0170.00015.84
7.1.100.0040.00617.04
7.1.90.0000.00915.88
7.1.80.0100.00315.95
7.1.70.0040.00816.53
7.1.60.0060.01117.65
7.1.50.0100.00216.07
7.1.40.0050.00515.66
7.1.30.0100.00715.55
7.1.20.0110.00715.79
7.1.10.0120.00315.75
7.1.00.0040.04419.06
7.0.330.0030.00615.25
7.0.320.0040.01215.27
7.0.310.0040.01215.09
7.0.300.0040.01215.49
7.0.290.0000.01114.97
7.0.280.0070.01115.35
7.0.270.0000.00815.35
7.0.260.0000.01215.32
7.0.250.0100.00015.13
7.0.240.0000.01015.29
7.0.230.0070.00715.41
7.0.220.0060.00915.27
7.0.210.0120.00315.56
7.0.200.0100.00414.89
7.0.190.0070.00715.11
7.0.180.0060.00615.10
7.0.170.0090.00015.46
7.0.160.0080.01615.54
7.0.150.0070.01015.32
7.0.140.0030.00715.14
7.0.130.0090.00915.22
7.0.120.0100.01315.21
7.0.110.0080.00415.52
7.0.100.0150.00415.30
7.0.90.0090.00615.47
7.0.80.0190.03217.47
7.0.70.0130.03117.69
7.0.60.0150.04117.67
7.0.50.0090.04817.86
7.0.40.0090.03316.74
7.0.30.0140.03916.80
7.0.20.0120.04216.79
7.0.10.0130.03716.70
7.0.00.0110.03216.73
5.6.380.0060.00314.26
5.6.370.0090.00314.44
5.6.360.0060.00914.29
5.6.350.0030.00614.21
5.6.340.0090.00614.24
5.6.330.0170.00313.96
5.6.320.0030.01214.07
5.6.310.0100.00314.15
5.6.300.0000.01114.38
5.6.290.0070.00414.16
5.6.280.0040.02117.80
5.6.270.0030.01014.05
5.6.260.0120.00014.42
5.6.250.0080.00414.33
5.6.240.0070.00714.23
5.6.230.0080.04617.36
5.6.220.0100.03717.60
5.6.210.0070.04617.37
5.6.200.0060.04317.73
5.6.190.0070.04917.68
5.6.180.0020.05317.51
5.6.170.0090.04217.58
5.6.160.0050.03217.79
5.6.150.0090.04717.57
5.6.140.0150.04517.56
5.6.130.0070.02617.65
5.6.120.0110.04917.56
5.6.110.0030.04217.66
5.6.100.0050.03217.71
5.6.90.0110.02317.66
5.6.80.0080.03517.31
5.6.70.0100.04317.36
5.6.60.0130.01817.21
5.6.50.0050.03017.21
5.6.40.0050.02717.18
5.6.30.0070.04517.23
5.6.20.0110.02317.33
5.6.10.0080.03617.15
5.6.00.0080.04017.21
5.5.380.0000.00611.18
5.5.370.0100.04215.87
5.5.360.0070.04315.89
5.5.350.0080.02515.79
5.5.340.0050.04316.00
5.5.330.0060.02516.04
5.5.320.0070.04316.01
5.5.310.0100.04116.03
5.5.300.0080.04215.95
5.5.290.0060.03815.97
5.5.280.0100.04216.12
5.5.270.0100.04516.04
5.5.260.0080.04915.96
5.5.250.0040.04615.89
5.5.240.0070.04215.67
5.5.230.0020.02815.68
5.5.220.0020.04515.72
5.5.210.0020.02715.67
5.5.200.0080.04015.72
5.5.190.0070.03015.71
5.5.180.0130.04015.72
5.5.170.0050.00511.18
5.5.160.0030.02815.72
5.5.150.0050.04415.64
5.5.140.0070.04615.68
5.5.130.0050.02315.64
5.5.120.0050.04015.62
5.5.110.0120.03815.71
5.5.100.0110.03615.56
5.5.90.0090.04015.60
5.5.80.0050.03415.67
5.5.70.0070.02215.62
5.5.60.0000.02515.61
5.5.50.0050.02315.57
5.5.40.0170.03215.54
5.5.30.0030.02915.66
5.5.20.0070.02515.65
5.5.10.0050.04715.61
5.5.00.0120.03815.64
5.4.450.0070.04215.31
5.4.440.0080.02015.27
5.4.430.0080.04015.30
5.4.420.0100.03715.37
5.4.410.0040.04715.13
5.4.400.0080.03815.07
5.4.390.0060.02315.06
5.4.380.0060.02015.10
5.4.370.0120.03215.08
5.4.360.0040.03815.15
5.4.350.0000.02315.06
5.4.340.0090.04015.07
5.4.330.0000.00811.18
5.4.320.0120.02015.00
5.4.310.0070.03215.00
5.4.300.0080.03715.12
5.4.290.0090.03315.11
5.4.280.0050.02914.99
5.4.270.0070.02515.16
5.4.260.0060.03015.08
5.4.250.0070.03515.14
5.4.240.0050.04215.06
5.4.230.0070.04415.10
5.4.220.0030.02515.20
5.4.210.0050.02515.11
5.4.200.0070.03015.09
5.4.190.0070.04015.11
5.4.180.0050.04515.06
5.4.170.0030.03915.12
5.4.160.0050.02815.13
5.4.150.0070.02515.03
5.4.140.0050.02513.73
5.4.130.0070.03013.72
5.4.120.0090.03813.75
5.4.110.0050.04113.75
5.4.100.0080.03813.71
5.4.90.0130.02713.72
5.4.80.0030.03713.76
5.4.70.0100.03213.80
5.4.60.0120.02713.80
5.4.50.0080.02313.80
5.4.40.0030.02413.72
5.4.30.0050.02613.75
5.4.20.0010.02113.79
5.4.10.0040.02313.70
5.4.00.0080.04013.37

preferences:
29.65 ms | 401 KiB | 5 Q