3v4l.org

run code in 300+ PHP versions simultaneously
<?php function firstDayOfWeek($date) { $day = DateTime::createFromFormat('d-m-Y', $date); $day->setISODate((int)$day->format('o'), (int)$day->format('W'), 1); return $day->format('d-m-Y'); } var_dump(firstDayOfWeek('17-07-2017'));

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)
8.3.60.0090.00916.88
8.3.50.0110.00416.65
8.3.40.0070.00718.76
8.3.30.0120.00318.80
8.3.20.0040.00420.34
8.3.10.0040.00421.73
8.3.00.0050.00319.50
8.2.180.0070.01418.54
8.2.170.0090.00622.96
8.2.160.0070.00720.47
8.2.150.0040.00424.18
8.2.140.0000.00724.66
8.2.130.0040.00421.10
8.2.120.0070.00026.35
8.2.110.0050.00521.04
8.2.100.0120.00018.17
8.2.90.0050.00319.10
8.2.80.0030.00517.97
8.2.70.0070.00317.71
8.2.60.0050.00317.92
8.2.50.0030.00518.10
8.2.40.0040.00420.46
8.2.30.0030.00620.91
8.2.20.0070.00018.01
8.2.10.0070.00017.97
8.2.00.0000.00818.11
8.1.280.0120.00925.92
8.1.270.0030.00523.96
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0030.00623.92
8.1.230.0110.00018.99
8.1.220.0020.00517.74
8.1.210.0050.00318.77
8.1.200.0070.00717.13
8.1.190.0040.00417.35
8.1.180.0000.00818.10
8.1.170.0000.00918.47
8.1.160.0000.00718.98
8.1.150.0040.00418.88
8.1.140.0040.00419.57
8.1.130.0000.00818.80
8.1.120.0000.00817.43
8.1.110.0040.00417.54
8.1.100.0020.00517.53
8.1.90.0050.00217.60
8.1.80.0040.00417.49
8.1.70.0000.00717.60
8.1.60.0000.00817.53
8.1.50.0000.00817.62
8.1.40.0040.00417.58
8.1.30.0040.00417.66
8.1.20.0000.00817.69
8.1.10.0000.00717.53
8.1.00.0000.00717.58
8.0.300.0000.00718.77
8.0.290.0040.00416.88
8.0.280.0030.00318.44
8.0.270.0000.00717.34
8.0.260.0000.00716.95
8.0.250.0030.00317.11
8.0.240.0030.00417.11
8.0.230.0030.00317.09
8.0.220.0070.00017.04
8.0.210.0030.00316.98
8.0.200.0000.00616.99
8.0.190.0060.00317.12
8.0.180.0040.00417.00
8.0.170.0070.00017.07
8.0.160.0080.00016.92
8.0.150.0050.00217.07
8.0.140.0030.00316.90
8.0.130.0000.00613.35
8.0.120.0070.00017.00
8.0.110.0040.00417.02
8.0.100.0030.00516.98
8.0.90.0040.00417.04
8.0.80.0000.01617.02
8.0.70.0000.00816.98
8.0.60.0040.00416.96
8.0.50.0070.00016.92
8.0.30.0100.00817.23
8.0.20.0100.01417.40
8.0.10.0020.00517.05
8.0.00.0090.00916.93
7.4.330.0020.00215.55
7.4.320.0060.00016.57
7.4.300.0040.00416.57
7.4.290.0040.00716.71
7.4.280.0100.00016.62
7.4.270.0080.00016.58
7.4.260.0040.00416.70
7.4.250.0090.00016.67
7.4.240.0030.00316.56
7.4.230.0000.00716.57
7.4.220.0070.02016.74
7.4.210.0080.00816.70
7.4.200.0040.00416.64
7.4.160.0110.00516.51
7.4.150.0140.00617.40
7.4.140.0100.00717.86
7.4.130.0140.00416.63
7.4.120.0100.01116.58
7.4.110.0180.00016.77
7.4.100.0100.01016.60
7.4.90.0070.01016.62
7.4.80.0150.00619.39
7.4.70.0040.01116.65
7.4.60.0030.01416.70
7.4.50.0000.01416.73
7.4.40.0080.00816.45
7.4.30.0160.00616.77
7.4.00.0060.00915.17
7.3.330.0000.00513.11
7.3.320.0000.00713.25
7.3.310.0000.00716.31
7.3.300.0030.00316.32
7.3.290.0100.00416.29
7.3.280.0090.00816.29
7.3.270.0090.00917.40
7.3.260.0100.00816.40
7.3.250.0120.00816.50
7.3.240.0040.01316.50
7.3.230.0130.00316.59
7.3.210.0030.01316.50
7.3.200.0030.01416.53
7.3.190.0090.00916.43
7.3.180.0040.01116.47
7.3.170.0100.00716.46
7.3.160.0060.00916.56
7.3.10.0070.00316.67
7.3.00.0000.01116.30
7.2.330.0100.00716.89
7.2.320.0070.00916.85
7.2.310.0090.00916.96
7.2.300.0070.01016.98
7.2.290.0200.00516.60
7.2.130.0050.00516.71
7.2.120.0060.00316.96
7.2.110.0030.01016.73
7.2.100.0190.00316.52
7.2.90.0410.00715.79
7.2.80.0510.00515.88
7.2.70.0580.00915.94
7.2.60.0520.00616.07
7.2.50.0650.00715.97
7.2.40.0950.00715.82
7.2.30.0110.00616.03
7.2.20.0090.00516.01
7.2.10.0060.00916.09
7.2.00.0330.00215.99
7.1.250.0030.00715.78
7.1.210.0090.00913.83
7.1.200.0450.00613.61
7.1.190.0130.00313.73
7.1.180.1080.00713.91
7.1.170.1800.00313.98
7.1.160.2000.01613.95
7.1.150.0370.00013.95
7.1.140.0250.00314.07
7.1.130.2370.00713.92
7.1.120.0490.00714.00
7.1.110.1810.00314.13
7.1.100.0820.00014.24
7.1.90.2270.01313.94
7.1.80.0200.00014.14
7.1.70.0170.00613.72
7.1.60.0270.01231.72
7.1.50.0960.00731.78
7.1.40.1910.00331.83
7.1.30.1170.01031.78
7.1.20.1620.00332.09
7.1.10.0970.01014.05
7.1.00.1190.00613.82
7.0.310.0100.00313.61
7.0.300.1090.00713.32
7.0.290.1270.00613.42
7.0.280.0140.00713.59
7.0.270.1320.01013.52
7.0.260.0060.00613.77
7.0.250.1110.01313.79
7.0.240.1200.01013.71
7.0.230.0360.00313.47
7.0.220.0140.00313.86
7.0.210.0170.00713.30
7.0.200.0110.00813.50
7.0.190.0840.00313.40
7.0.180.1070.00313.41
7.0.170.1080.00913.67
7.0.160.1140.00613.68
7.0.150.1500.01013.64
7.0.140.1040.00713.40
7.0.130.0840.01013.65
7.0.120.0810.01013.54
7.0.110.0800.00313.57
7.0.100.0740.00913.75
7.0.90.0900.00313.41
7.0.80.0820.00313.52
7.0.70.1070.00313.48
7.0.60.0910.00713.72
7.0.50.0830.00713.45
7.0.40.0820.01013.60
7.0.30.0980.00913.95
7.0.20.0970.01313.41
7.0.10.1220.00313.63
7.0.00.1300.00713.56

preferences:
44.4 ms | 401 KiB | 5 Q