3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(date("Y-m-d",strtotime("first day previous month"))); var_dump(date('Y-m-d', strtotime(date('Y-m-01').' -1 MONTH'));

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)
5.4.260.0030.04412.36
5.4.250.0090.03612.36
5.4.240.0060.03712.36
5.4.230.0080.04212.35
5.4.220.0080.04812.35
5.4.210.0120.05312.36
5.4.200.0080.05612.35
5.4.190.0110.05312.35
5.4.180.0110.05412.35
5.4.170.0120.05012.36
5.4.160.0100.04612.35
5.4.150.0080.05012.35
5.4.140.0090.05012.04
5.4.130.0090.04812.02
5.4.120.0070.05011.98
5.4.110.0050.04311.98
5.4.100.0040.03811.98
5.4.90.0080.03611.98
5.4.80.0060.03911.98
5.4.70.0100.04911.98
5.4.60.0100.04611.98
5.4.50.0090.04311.98
5.4.40.0080.04911.96
5.4.30.0080.04811.96
5.4.20.0100.04611.96
5.4.10.0110.04011.96
5.4.00.0160.05311.45
5.3.280.0110.04812.71
5.3.270.0070.05312.73
5.3.260.0080.05312.72
5.3.250.0130.04912.71
5.3.240.0070.04212.72
5.3.230.0100.04112.71
5.3.220.0080.05812.68
5.3.210.0210.06612.68
5.3.200.0120.04412.68
5.3.190.0060.05612.68
5.3.180.0070.03712.68
5.3.170.0090.03912.67
5.3.160.0090.05112.68
5.3.150.0160.03512.67
5.3.140.0100.04112.66
5.3.130.0120.04712.65
5.3.120.0110.05112.66
5.3.110.0070.05412.66
5.3.100.0110.04712.12
5.3.90.0100.04612.08
5.3.80.0070.04512.07
5.3.70.0130.05612.07
5.3.60.0070.05012.06
5.3.50.0150.03912.00
5.3.40.0070.04912.00
5.3.30.0140.06011.94
5.3.20.0080.04811.70
5.3.10.0120.04211.65
5.3.00.0090.04811.64
5.2.170.0070.0399.14
5.2.160.0120.0369.14
5.2.150.0080.0389.14
5.2.140.0090.0429.14
5.2.130.0070.0409.10
5.2.120.0120.0359.10
5.2.110.0060.0429.11
5.2.100.0040.0409.11
5.2.90.0040.0319.10
5.2.80.0100.0319.09
5.2.70.0050.0389.09
5.2.60.0080.0369.05
5.2.50.0080.0339.02
5.2.40.0050.0298.99
5.2.30.0050.0318.97
5.2.20.0080.0288.96
5.2.10.0090.0288.89
5.2.00.0040.0318.74
5.1.60.0020.0288.03
5.1.50.0080.0278.03
5.1.40.0070.0338.02
5.1.30.0060.0348.36
5.1.20.0040.0328.39
5.1.10.0060.0288.11
5.1.00.0070.0368.11
5.0.50.0050.0326.58
5.0.40.0070.0266.44
5.0.30.0080.0386.26
5.0.20.0080.0396.23
5.0.10.0040.0286.20
5.0.00.0070.0436.20
4.4.90.0040.0224.77
4.4.80.0060.0234.75
4.4.70.0080.0194.76
4.4.60.0040.0224.76
4.4.50.0050.0234.77
4.4.40.0050.0324.71
4.4.30.0030.0214.76
4.4.20.0050.0204.84
4.4.10.0080.0174.84
4.4.00.0020.0324.76
4.3.110.0050.0164.66
4.3.100.0020.0174.66
4.3.90.0040.0144.63
4.3.80.0050.0254.59
4.3.70.0040.0184.63
4.3.60.0050.0174.63
4.3.50.0010.0194.63
4.3.40.0030.0274.54
4.3.30.0020.0173.27
4.3.20.0020.0173.25
4.3.10.0030.0163.21
4.3.00.0030.0206.80

preferences:
142.86 ms | 1386 KiB | 7 Q