3v4l.org

run code in 300+ PHP versions simultaneously
<?php date_default_timezone_set('UTC'); //should be set in your script or in your php.ini $date = new DateTime('FIRST DAY OF PREVIOUS MONTH'); echo $date->format('Y-m-d'), PHP_EOL;

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)
8.3.60.0080.00616.50
8.3.50.0130.00321.94
8.3.40.0110.00418.80
8.3.30.0120.00318.97
8.3.20.0070.00020.21
8.3.10.0030.00523.70
8.3.00.0080.00020.77
8.2.180.0110.00716.75
8.2.170.0110.00422.96
8.2.160.0100.00320.35
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0060.00626.16
8.2.120.0000.00722.25
8.2.110.0060.00322.11
8.2.100.0070.00417.97
8.2.90.0060.00319.23
8.2.80.0030.00617.97
8.2.70.0030.00617.63
8.2.60.0100.00017.77
8.2.50.0000.00918.07
8.2.40.0040.00418.34
8.2.30.0070.00018.10
8.2.20.0000.00717.70
8.2.10.0000.00717.74
8.2.00.0000.00717.67
8.1.280.0110.00825.92
8.1.270.0050.00323.71
8.1.260.0080.00026.35
8.1.250.0050.00328.09
8.1.240.0100.00724.02
8.1.230.0090.00319.14
8.1.220.0050.00317.74
8.1.210.0080.00018.77
8.1.200.0060.00317.35
8.1.190.0050.00317.39
8.1.180.0050.00318.10
8.1.170.0060.00618.69
8.1.160.0000.00721.99
8.1.150.0040.00418.80
8.1.140.0040.00417.43
8.1.130.0030.00317.88
8.1.120.0040.00417.58
8.1.110.0040.00417.48
8.1.100.0070.00017.59
8.1.90.0040.00417.59
8.1.80.0000.00717.48
8.1.70.0000.00717.52
8.1.60.0050.00317.63
8.1.50.0040.00417.58
8.1.40.0040.00417.55
8.1.30.0060.00317.69
8.1.20.0050.00317.54
8.1.10.0000.00717.70
8.1.00.0030.00617.51
8.0.300.0000.00718.77
8.0.290.0000.00817.18
8.0.280.0000.00718.51
8.0.270.0050.00317.31
8.0.260.0050.00316.97
8.0.250.0030.00316.94
8.0.240.0030.00317.08
8.0.230.0000.00716.84
8.0.220.0030.00316.97
8.0.210.0040.00416.96
8.0.200.0040.00417.01
8.0.190.0040.00416.99
8.0.180.0030.00316.85
8.0.170.0000.00816.88
8.0.160.0040.00416.81
8.0.150.0030.00316.93
8.0.140.0040.00416.91
8.0.130.0000.00513.36
8.0.120.0000.00816.93
8.0.110.0000.00716.89
8.0.100.0040.00416.83
8.0.90.0000.00716.91
8.0.80.0090.00616.89
8.0.70.0070.00016.99
8.0.60.0030.00616.84
8.0.50.0040.00416.99
8.0.30.0130.00617.21
8.0.20.0070.01117.42
8.0.10.0000.00716.96
8.0.00.0130.00516.83
7.4.330.0050.00015.15
7.4.320.0000.00616.54
7.4.300.0070.00016.66
7.4.290.0030.00316.63
7.4.280.0040.00416.54
7.4.270.0030.00316.64
7.4.260.0040.00416.53
7.4.250.0040.00416.60
7.4.240.0050.00216.54
7.4.230.0070.00016.66
7.4.220.0120.00616.67
7.4.210.0060.00916.65
7.4.200.0030.00316.46
7.4.190.0030.00316.71
7.4.160.0140.00416.40
7.4.150.0140.00317.40
7.4.140.0050.01217.86
7.4.130.0070.01016.73
7.4.120.0110.00616.64
7.4.110.0100.00616.43
7.4.100.0040.01516.59
7.4.90.0040.01416.47
7.4.80.0030.01316.60
7.4.70.0080.00816.70
7.4.60.0100.00716.43
7.4.50.0040.00016.65
7.4.40.0030.01022.77
7.4.30.0090.00616.69
7.4.10.0120.00614.88
7.4.00.0100.00915.10
7.3.330.0000.00513.12
7.3.320.0050.00013.25
7.3.310.0030.00316.25
7.3.300.0030.00316.30
7.3.290.0100.00716.27
7.3.280.0080.00816.29
7.3.270.0060.01217.40
7.3.260.0100.00716.49
7.3.250.0120.00716.43
7.3.240.0130.01016.33
7.3.230.0120.00616.80
7.3.210.0060.01016.49
7.3.200.0120.00919.39
7.3.190.0130.00616.60
7.3.180.0100.00616.54
7.3.170.0060.01016.54
7.3.160.0030.01316.61
7.3.130.0090.00914.75
7.3.120.0120.00514.92
7.3.110.0030.01715.02
7.3.100.0140.00015.01
7.3.90.0110.00414.82
7.3.80.0070.00314.75
7.3.70.0080.00814.83
7.3.60.0040.01114.63
7.3.50.0110.00414.72
7.3.40.0000.00814.59
7.3.30.0090.00614.61
7.3.20.0070.00716.68
7.3.10.0040.00816.76
7.3.00.0070.00716.73
7.2.330.0130.00316.63
7.2.320.0070.01116.74
7.2.310.0110.00616.57
7.2.300.0090.00616.77
7.2.290.0030.01316.64
7.2.260.0100.01315.18
7.2.250.0070.01415.14
7.2.240.0030.01215.05
7.2.230.0030.01014.99
7.2.220.0100.00614.98
7.2.210.0060.01015.37
7.2.200.0040.00415.15
7.2.190.0090.00915.19
7.2.180.0120.00614.94
7.2.170.0040.01215.14
7.2.160.0080.00415.25
7.2.150.0120.00316.84
7.2.140.0070.00717.10
7.2.130.0000.01317.18
7.2.120.0070.00716.96
7.2.110.0060.00617.11
7.2.100.0060.00617.18
7.2.90.0060.00817.03
7.2.80.0110.00316.75
7.2.70.0040.00816.73
7.2.60.0040.00716.84
7.2.50.0080.00816.94
7.2.40.0080.00816.80
7.2.30.0000.01317.09
7.2.20.0040.01417.24
7.2.10.0000.01316.97
7.2.00.0070.00716.76
7.1.330.0000.01315.57
7.1.320.0030.00915.71
7.1.310.0000.01515.66
7.1.300.0030.01015.52
7.1.290.0060.00315.92
7.1.280.0160.00015.88
7.1.270.0090.00615.91
7.1.260.0070.00716.02
7.1.250.0070.00416.00
7.1.240.0070.00715.63
7.1.230.0080.00615.78
7.1.220.0080.00415.66
7.1.210.0060.00615.66
7.1.200.0060.00515.66
7.1.190.0040.00415.51
7.1.180.0080.00415.65
7.1.170.0080.00415.78
7.1.160.0030.00915.96
7.1.150.0000.00915.59
7.1.140.0030.00715.74
7.1.130.0070.00415.72
7.1.120.0000.01215.82
7.1.110.0040.00715.77
7.1.100.0030.00715.55
7.1.90.0000.01415.97
7.1.80.0050.00315.70
7.1.70.0000.00816.60
7.1.60.0080.00817.52
7.1.50.0060.00916.36
7.1.40.0030.00615.70
7.1.30.0090.00615.82
7.1.20.0040.01115.90
7.1.10.0020.00515.45
7.1.00.0070.04018.96
7.0.330.0040.00815.06
7.0.320.0030.00715.30
7.0.310.0060.00615.15
7.0.300.0050.00515.24
7.0.290.0070.00015.36
7.0.280.0060.00615.59
7.0.270.0030.00915.40
7.0.260.0120.00015.32
7.0.250.0040.00415.14
7.0.240.0000.01015.45
7.0.230.0030.00915.38
7.0.220.0060.00315.47
7.0.210.0030.00515.51
7.0.200.0050.00616.15
7.0.190.0000.01115.58
7.0.180.0070.00015.55
7.0.170.0070.00415.50
7.0.160.0070.00715.31
7.0.150.0030.00315.50
7.0.140.0030.03918.61
7.0.130.0000.00815.55
7.0.120.0030.00315.67
7.0.110.0090.00315.50
7.0.100.0040.00415.31
7.0.90.0030.00615.27
7.0.80.0060.00615.46
7.0.70.0030.00715.10
7.0.60.0030.02517.67
7.0.50.0080.04216.55
7.0.40.0080.04516.71
7.0.30.0110.02616.67
7.0.20.0170.02816.67
7.0.10.0070.04516.85
7.0.00.0050.04516.83
5.6.400.0070.00714.36
5.6.390.0030.00614.45
5.6.380.0030.00614.43
5.6.370.0040.01014.52
5.6.360.0030.00614.41
5.6.350.0030.00914.36
5.6.340.0050.00514.62
5.6.330.0000.01214.40
5.6.320.0030.00714.34
5.6.310.0140.00014.29
5.6.300.0000.00714.47
5.6.290.0030.01014.57
5.6.280.0020.04017.74
5.6.270.0060.00314.24
5.6.260.0040.00814.42
5.6.250.0030.01214.27
5.6.240.0120.00014.70
5.6.230.0040.01114.39
5.6.220.0050.00214.51
5.6.210.0050.04417.44
5.6.200.0180.01816.37
5.6.190.0020.02717.50
5.6.180.0100.02817.35
5.6.170.0200.03017.31
5.6.160.0050.02517.58
5.6.150.0030.03316.21
5.6.140.0060.02116.39
5.6.130.0100.03016.38
5.6.120.0060.04717.62
5.6.110.0110.04117.71
5.6.100.0060.04217.83
5.6.90.0000.04117.93
5.6.80.0130.03717.22
5.6.70.0040.01114.31
5.6.60.0070.00714.35
5.6.50.0030.00614.37
5.6.40.0060.00614.06
5.6.30.0000.00714.22
5.6.20.0000.01014.54
5.6.10.0030.01014.22
5.6.00.0100.00714.28
5.5.380.0110.00314.51
5.5.370.0070.00714.02
5.5.360.0140.00014.42
5.5.350.0070.03817.25
5.5.340.0060.04316.23
5.5.330.0070.04017.25
5.5.320.0080.02817.39
5.5.310.0150.03017.36
5.5.300.0060.02316.05
5.5.290.0120.04016.21
5.5.280.0100.01717.66
5.5.270.0020.04817.71
5.5.260.0070.04417.70
5.5.250.0040.04117.35
5.5.240.2130.02417.16
5.5.230.0000.00714.05
5.5.220.0000.00914.39
5.5.210.0030.01014.16
5.5.200.0120.00314.28
5.5.190.0030.00614.34
5.5.180.0060.00614.15
5.5.170.0030.01214.27
5.5.160.0110.00714.36
5.5.150.0030.00914.17
5.5.140.0000.00814.08
5.5.130.0070.00414.41
5.5.120.0040.00714.23
5.5.110.0040.00414.07
5.5.100.0080.00014.54
5.5.90.0070.00714.42
5.5.80.0000.01014.32
5.5.70.0090.00614.32
5.5.60.0080.00414.26
5.5.50.0030.00914.50
5.5.40.0040.00414.05
5.5.30.0000.01414.39
5.5.20.0100.00314.46
5.5.10.0050.00214.24
5.5.00.0040.00414.45
5.4.450.0500.02615.37
5.4.440.0260.02215.38
5.4.430.0400.02015.45
5.4.420.0250.02415.36
5.4.410.0220.04015.21
5.4.400.0780.02515.24
5.4.390.0570.02015.29
5.4.380.0230.03215.00
5.4.370.0130.03115.01
5.4.360.0170.03515.01
5.4.350.0200.03315.03
5.4.340.0230.02215.02
5.4.330.0030.00711.33
5.4.320.0050.02111.89
5.4.310.0060.02311.89
5.4.300.0040.02411.89
5.4.290.0090.02311.89
5.4.280.0050.01911.84
5.4.270.0060.01911.84
5.4.260.0010.02411.82
5.4.250.0050.02611.82
5.4.240.0040.02611.82
5.4.230.0050.02311.82
5.4.220.0040.01911.82
5.4.210.0030.02111.82
5.4.200.0070.02011.82
5.4.190.0030.02211.82
5.4.180.0050.02011.82
5.4.170.0060.02011.82
5.4.160.0050.02011.82
5.4.150.0040.02311.82
5.4.140.0060.01911.66
5.4.130.0020.02511.65
5.4.120.0050.01911.63
5.4.110.0050.02211.63
5.4.100.0080.02411.63
5.4.90.0040.02711.63
5.4.80.0050.02211.63
5.4.70.0050.02011.63
5.4.60.0050.02111.63
5.4.50.0070.01911.63
5.4.40.0030.02211.62
5.4.30.0050.01911.62
5.4.20.0060.01911.62
5.4.10.0060.01911.62
5.4.00.0060.01811.36
5.3.290.0060.02212.06
5.3.280.0060.02312.02
5.3.270.0070.02212.03
5.3.260.0040.02512.02
5.3.250.0050.02112.02
5.3.240.0090.02212.02
5.3.230.0050.02712.02
5.3.220.0050.03212.00
5.3.210.0050.02512.01
5.3.200.0030.02312.00
5.3.190.0060.02012.00
5.3.180.0020.02212.00
5.3.170.0050.02312.00
5.3.160.0080.03012.00
5.3.150.0040.02812.00
5.3.140.0030.03012.00
5.3.130.0030.02611.99
5.3.120.0030.02811.99
5.3.110.0040.02611.99
5.3.100.0040.02611.72
5.3.90.0060.02611.70
5.3.80.0070.02311.70
5.3.70.0030.02611.70
5.3.60.0040.02111.70
5.3.50.0050.02411.66
5.3.40.0040.02411.66
5.3.30.0050.02011.63
5.3.20.0040.02911.51
5.3.10.0040.02411.49
5.3.00.0040.02111.48
5.2.170.0050.0349.19
5.2.160.0090.0349.18
5.2.150.0070.0299.18
5.2.140.0060.0349.18
5.2.130.0070.0409.14
5.2.120.0030.0319.14
5.2.110.0030.0319.14
5.2.100.0050.0289.14
5.2.90.0040.0319.14
5.2.80.0030.0339.14
5.2.70.0050.0319.13
5.2.60.0050.0309.09
5.2.50.0070.0289.06
5.2.40.0040.0339.03
5.2.30.0060.0459.01
5.2.20.0100.0369.00
5.2.10.0050.0328.90
5.2.00.0050.0288.77
5.1.60.0070.0268.02
5.1.50.0020.0268.02
5.1.40.0030.0338.01
5.1.30.0070.0288.36
5.1.20.0060.0368.38
5.1.10.0070.0328.10
5.1.00.0040.0258.10
5.0.50.0020.0226.57
5.0.40.0020.0206.43
5.0.30.0030.0316.25
5.0.20.0030.0196.23
5.0.10.0040.0186.20
5.0.00.0020.0336.20
4.4.90.0060.0134.78
4.4.80.0030.0144.76
4.4.70.0030.0194.76
4.4.60.0040.0164.75
4.4.50.0030.0144.77
4.4.40.0050.0284.71
4.4.30.0040.0144.76
4.4.20.0020.0164.84
4.4.10.0020.0164.85
4.4.00.0020.0254.75
4.3.110.0000.0184.67
4.3.100.0010.0164.67
4.3.90.0000.0174.64
4.3.80.0020.0254.58
4.3.70.0040.0134.63
4.3.60.0030.0144.63
4.3.50.0030.0164.63
4.3.40.0030.0234.54
4.3.30.0030.0153.27
4.3.20.0030.0203.24
4.3.10.0020.0233.21
4.3.00.0070.03713.14

preferences:
54.75 ms | 401 KiB | 5 Q