3v4l.org

run code in 300+ PHP versions simultaneously
<?php function datediffInWeeks($date1, $date2) { if($date1 > $date2) return datediffInWeeks($date2, $date1); $first = DateTime::createFromFormat('Y/m/d', $date1); $second = DateTime::createFromFormat('m/d/Y', $date2); return floor($first->diff($second)->days/7); } var_dump(datediffInWeeks('2018-01-01', '2018-02-09'));// 21 var_dump(datediffInWeeks('6/4/2020', '1/2/2021'));// 21

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)
8.3.60.0220.00618.30
8.3.50.0100.00618.02
8.3.40.0060.00918.92
8.3.30.0070.00718.96
8.3.20.0040.00420.16
8.3.10.0040.00423.53
8.3.00.0080.00019.56
8.2.180.0140.00718.57
8.2.170.0070.00722.96
8.2.160.0040.01120.38
8.2.150.0090.00024.18
8.2.140.0040.00424.66
8.2.130.0070.00019.46
8.2.120.0040.00426.35
8.2.110.0090.00020.52
8.2.100.0080.00417.97
8.2.90.0050.00317.98
8.2.80.0000.00720.42
8.2.70.0040.00417.93
8.2.60.0000.00818.04
8.2.50.0040.00418.22
8.2.40.0040.00420.61
8.2.30.0000.00819.36
8.2.20.0030.00618.05
8.2.10.0050.00318.17
8.2.00.0050.00218.12
8.1.280.0180.00025.92
8.1.270.0070.00021.95
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0080.00023.92
8.1.230.0090.00321.02
8.1.220.0060.00317.76
8.1.210.0040.00418.77
8.1.200.0060.00317.48
8.1.190.0060.00317.35
8.1.180.0030.00518.10
8.1.170.0030.00518.76
8.1.160.0030.00618.95
8.1.150.0000.00720.30
8.1.140.0050.00217.68
8.1.130.0070.00019.05
8.1.120.0040.00417.45
8.1.110.0060.00317.59
8.1.100.0040.00417.52
8.1.90.0050.00217.35
8.1.80.0000.00717.50
8.1.70.0000.00917.42
8.1.60.0030.00617.62
8.1.50.0080.00017.53
8.1.40.0000.00717.53
8.1.30.0040.00417.61
8.1.20.0030.00517.61
8.1.10.0030.00617.57
8.1.00.0040.00417.50
8.0.300.0080.00019.96
8.0.290.0000.00716.88
8.0.280.0080.00018.45
8.0.270.0000.00717.15
8.0.260.0080.00016.84
8.0.250.0000.00817.19
8.0.240.0050.00217.13
8.0.230.0060.00317.20
8.0.220.0030.00317.12
8.0.210.0080.00016.97
8.0.200.0030.00317.03
8.0.190.0040.00417.07
8.0.180.0040.00417.02
8.0.170.0070.00317.00
8.0.160.0040.00417.10
8.0.150.0040.00316.98
8.0.140.0080.00017.05
8.0.130.0040.00413.48
8.0.120.0000.00716.94
8.0.110.0040.00416.98
8.0.100.0040.00416.91
8.0.90.0050.00217.09
8.0.80.0130.00317.08
8.0.70.0000.00717.10
8.0.60.0070.00016.96
8.0.50.0000.00716.95
8.0.30.0070.01117.01
8.0.20.0110.00817.40
8.0.10.0000.00717.17
8.0.00.0080.01016.65
7.4.330.0000.00515.55
7.4.320.0070.00016.53
7.4.300.0070.00016.48
7.4.290.0030.00516.37
7.4.280.0070.00016.59
7.4.270.0000.00816.52
7.4.260.0070.00016.52
7.4.250.0040.00416.45
7.4.240.0040.00416.63
7.4.230.0000.00716.34
7.4.220.0000.00816.61
7.4.210.0100.00816.56
7.4.200.0000.00716.71
7.4.160.0110.00916.53
7.4.150.0130.00617.40
7.4.140.0140.00717.86
7.4.130.0150.00316.52
7.4.120.0130.00516.66
7.4.110.0110.00716.68
7.4.100.0070.01416.74
7.4.90.0040.01316.69
7.4.80.0100.01319.39
7.4.70.0140.00316.53
7.4.60.0100.00716.29
7.4.50.0070.01116.70
7.4.40.0060.01316.70
7.4.00.0070.01015.26
7.3.330.0050.00013.51
7.3.320.0030.00313.25
7.3.310.0070.00016.47
7.3.300.0050.00316.45
7.3.290.0000.00716.30
7.3.280.0150.01416.37
7.3.270.0120.01217.40
7.3.260.0060.01216.49
7.3.250.0070.01016.36
7.3.240.0090.00916.45
7.3.230.0030.01616.63
7.3.210.0050.01116.50
7.3.200.0100.01016.68
7.3.190.0110.00416.52
7.3.180.0060.01016.54
7.3.170.0060.01216.59
7.3.160.0100.00616.34
7.2.330.0060.01016.64
7.2.320.0090.00816.71
7.2.310.0130.00416.81
7.2.300.0070.01116.55
7.2.290.0100.01016.55
7.2.60.0040.00416.92
7.2.20.0410.01317.64
7.2.10.0340.01017.79
7.2.00.0820.01717.40
7.1.200.0070.00715.96
7.1.140.0460.01816.68
7.1.130.0370.00316.72
7.1.120.0320.00716.59
7.1.110.0340.00315.96
7.1.100.0350.01016.02
7.1.90.0430.00715.97
7.1.80.0280.01116.21
7.1.70.0400.00315.23
7.1.60.0650.01733.33
7.1.50.0700.01333.02
7.1.40.0680.00332.57
7.1.30.0790.00732.80
7.1.20.0480.01232.81
7.1.10.0360.01814.93
7.1.00.0640.01114.82

preferences:
66.15 ms | 400 KiB | 5 Q