3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo date('Y-m-d', strtotime('first day of last month')); //$date = new DateTime(''); //$date->modify('first day of month'); $date = new DateTime(date('Y-m-d', strtotime('first day of month'))); $i = new DateInterval('P1M'); $end = new DateTime('-1 year'); while ($date >= $end) { echo $date->format('Y F') . PHP_EOL; $date = $date->sub($i); }

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)
8.3.60.0090.00916.75
8.3.50.0100.01022.16
8.3.40.0070.00718.96
8.3.30.0110.00719.09
8.3.20.0040.00420.31
8.3.10.0040.00423.65
8.3.00.0040.00420.89
8.2.180.0060.01216.75
8.2.170.0070.00722.96
8.2.160.0070.00720.52
8.2.150.0090.00024.18
8.2.140.0000.00824.66
8.2.130.0130.00626.16
8.2.120.0050.00222.12
8.2.110.0090.00022.23
8.2.100.0090.00318.00
8.2.90.0080.00019.14
8.2.80.0050.00318.02
8.2.70.0080.00017.75
8.2.60.0060.00318.05
8.2.50.0080.00018.07
8.2.40.0000.00918.03
8.2.30.0060.00318.22
8.2.20.0000.00817.85
8.2.10.0050.00217.96
8.2.00.0040.00417.84
8.1.280.0150.00425.92
8.1.270.0050.00324.14
8.1.260.0000.00826.35
8.1.250.0060.00328.09
8.1.240.0060.00323.90
8.1.230.0080.00319.15
8.1.220.0080.00017.79
8.1.210.0040.00418.77
8.1.200.0070.00317.47
8.1.190.0050.00517.63
8.1.180.0030.00618.10
8.1.170.0000.00818.96
8.1.160.0080.00022.17
8.1.150.0050.00318.96
8.1.140.0000.00717.60
8.1.130.0030.00317.91
8.1.120.0040.00417.76
8.1.110.0000.00817.63
8.1.100.0000.00717.77
8.1.90.0070.00017.61
8.1.80.0080.00317.75
8.1.70.0070.00017.68
8.1.60.0040.00417.70
8.1.50.0030.00617.64
8.1.40.0000.00817.70
8.1.30.0000.00817.83
8.1.20.0040.00417.88
8.1.10.0060.00317.80
8.1.00.0000.00917.81
8.0.300.0040.00418.77
8.0.290.0070.00017.30
8.0.280.0000.00718.61
8.0.270.0000.00717.39
8.0.260.0040.00417.03
8.0.250.0080.00017.11
8.0.240.0070.00017.27
8.0.230.0000.00817.27
8.0.220.0050.00317.13
8.0.210.0000.00717.09
8.0.200.0000.00717.31
8.0.190.0050.00317.12
8.0.180.0040.00417.17
8.0.170.0040.00417.05
8.0.160.0040.00417.16
8.0.150.0030.00317.14
8.0.140.0040.00417.15
8.0.130.0000.00513.49
8.0.120.0040.00417.13
8.0.110.0050.00217.16
8.0.100.0050.00217.13
8.0.90.0050.00316.98
8.0.80.0070.01417.22
8.0.70.0030.00617.04
8.0.60.0080.00017.20
8.0.50.0070.00017.05
8.0.30.0120.00717.31
8.0.20.0140.00517.51
8.0.10.0000.00717.26
8.0.00.0070.01317.12
7.4.330.0000.00615.21
7.4.320.0040.00416.66
7.4.300.0060.00016.59
7.4.290.0070.00016.84
7.4.280.0030.00316.71
7.4.270.0030.00316.91
7.4.260.0060.00316.82
7.4.250.0040.00416.84
7.4.240.0000.00716.84
7.4.230.0000.00716.83
7.4.220.0030.01916.79
7.4.210.0110.00316.72
7.4.200.0000.00716.57
7.4.190.0000.00716.69
7.4.160.0120.00416.90
7.4.150.0120.00617.40
7.4.140.0080.01217.86
7.4.130.0100.00816.84
7.4.120.0070.01116.72
7.4.110.0030.01316.65
7.4.100.0150.00916.76
7.4.90.0030.01416.64
7.4.80.0030.01419.39
7.4.70.0060.01216.72
7.4.60.0000.01716.69
7.4.50.0040.00016.43
7.4.40.0130.00322.77
7.4.30.0060.01016.82
7.4.00.0030.00615.27
7.3.330.0020.00213.27
7.3.320.0030.00313.15
7.3.310.0050.00216.40
7.3.300.0030.00316.34
7.3.290.0070.00716.32
7.3.280.0120.01016.43
7.3.270.0120.00917.40
7.3.260.0040.01316.89
7.3.250.0080.01016.51
7.3.240.0120.00616.74
7.3.230.0070.01016.66
7.3.210.0060.01116.70
7.3.200.0060.01119.39
7.3.190.0130.00916.39
7.3.180.0100.00716.64
7.3.170.0100.00716.54
7.3.160.0040.01316.73
7.3.120.0060.01015.29
7.2.330.0100.01016.84
7.2.320.0100.01317.06
7.2.310.0110.00716.77
7.2.300.0170.00616.70
7.2.290.0060.01016.84
7.2.00.0030.00919.54
7.1.100.0040.00718.48
7.1.70.0140.00617.35
7.1.60.0090.01519.29
7.1.50.0120.01217.04
7.1.00.0070.07322.28
7.0.200.0060.00316.70
7.0.140.0030.07722.19
7.0.100.0100.07719.93
7.0.90.0030.05719.89
7.0.80.0070.08319.92
7.0.70.0100.07719.96
7.0.60.0100.08019.93
7.0.50.0070.07720.30
7.0.40.0100.07720.15
7.0.30.0130.07320.13
7.0.20.0070.08720.08
7.0.10.0030.05320.12
7.0.00.0130.04720.17
5.6.280.0000.07720.92
5.6.250.0100.07720.48
5.6.240.0070.08720.75
5.6.230.0070.08720.65
5.6.220.0100.07320.70
5.6.210.0030.07320.56
5.6.200.0200.06721.11
5.6.190.0100.08321.04
5.6.180.0100.04720.93
5.6.170.0070.08321.09
5.6.160.0030.09021.13
5.6.150.0070.07721.11
5.6.140.0070.05321.01
5.6.130.0070.06321.10
5.6.120.0170.07321.08
5.6.110.0100.07721.03
5.6.100.0130.07321.07
5.6.90.0100.08321.02
5.6.80.0070.08720.49
5.6.70.0100.07020.43
5.6.60.0170.06020.53
5.6.50.0130.07320.31
5.6.40.0100.05720.38
5.6.30.0170.07320.35
5.6.20.0070.04720.36
5.6.10.0000.08320.43
5.6.00.0100.08020.41
5.5.380.0070.08720.35
5.5.370.0130.04720.51
5.5.360.0100.08020.55
5.5.350.0130.07720.44
5.5.340.0000.05020.77
5.5.330.0030.08020.90
5.5.320.0100.08020.82
5.5.310.0070.06320.75
5.5.300.0130.07320.80
5.5.290.0100.08020.90
5.5.280.0030.06320.85
5.5.270.0100.07020.91
5.5.260.0030.05320.88
5.5.250.0030.08320.66
5.5.240.0170.07020.14
5.5.230.0000.09020.17
5.5.220.0070.05320.13
5.5.210.0070.08020.26
5.5.200.0100.08020.20
5.5.190.0100.07720.12
5.5.180.0030.08720.28
5.5.160.0030.08320.14
5.5.150.0070.08020.23
5.5.140.0070.08020.24
5.5.130.0070.07720.20
5.5.120.0100.07720.23
5.5.110.0130.06720.14
5.5.100.0030.08320.07
5.5.90.0100.07320.04
5.5.80.0100.07020.07
5.5.70.0030.07720.05
5.5.60.0100.07320.09
5.5.50.0070.06020.04
5.5.40.0070.08020.06
5.5.30.0070.04320.14
5.5.20.0030.05320.02
5.5.10.0170.06720.08
5.5.00.0070.07720.02
5.4.450.0100.04719.55
5.4.440.0070.08019.11
5.4.430.0070.07719.45
5.4.420.0100.07719.43
5.4.410.0070.03719.29
5.4.400.0170.06718.95
5.4.390.0100.04319.12
5.4.380.0030.08019.03
5.4.370.0030.06718.98
5.4.360.0070.07318.91
5.4.350.0100.07019.23
5.4.340.0130.06719.10
5.4.320.0070.05019.12
5.4.310.0100.05018.90
5.4.300.0070.06318.98
5.4.290.0030.07718.95
5.4.280.0100.07319.02
5.4.270.0030.05318.91
5.4.260.0070.07718.81
5.4.250.0100.07019.02
5.4.240.0070.04318.75
5.4.230.0030.07319.16
5.4.220.0000.05318.94
5.4.210.0070.07019.02
5.4.200.0030.08019.09
5.4.190.0000.06018.93
5.4.180.0070.08019.01
5.4.170.0030.08318.80
5.4.160.0070.07719.10
5.4.150.0100.07718.94
5.4.140.0070.06316.34
5.4.130.0030.07716.20
5.4.120.0070.07716.42
5.4.110.0070.07016.48
5.4.100.0030.07716.46
5.4.90.0070.05716.27
5.4.80.0070.06716.35
5.4.70.0030.07016.27
5.4.60.0070.07016.45
5.4.50.0070.07716.35
5.4.40.0130.06716.35
5.4.30.0070.07016.21
5.4.20.0100.05716.27
5.4.10.0170.06016.38
5.4.00.0100.06715.73
5.3.290.0030.05014.57
5.3.280.0070.07714.60
5.3.270.0170.06014.46
5.3.260.0100.08714.42
5.3.250.0100.06714.58
5.3.240.0030.04314.58
5.3.230.0030.06714.58
5.3.220.0130.06314.40
5.3.210.0070.07014.55
5.3.200.0070.07014.55
5.3.190.0070.07714.42
5.3.180.0070.03714.55
5.3.170.0100.07014.51
5.3.160.0070.05714.55
5.3.150.0130.07014.47
5.3.140.0100.07714.49
5.3.130.0070.07714.48
5.3.120.0100.04014.56
5.3.110.0070.07314.49
5.3.100.0030.08313.97
5.3.90.0130.07013.87
5.3.80.0070.06314.00
5.3.70.0070.07313.80
5.3.60.0100.07013.93
5.3.50.0130.07013.71
5.3.40.0100.07013.93
5.3.30.0100.06713.86
5.3.20.0070.07713.54
5.3.10.0030.05013.64
5.3.00.0030.07713.41
5.2.170.0130.03311.68
5.2.160.0070.04011.68
5.2.150.0070.06011.68
5.2.140.0000.04311.68
5.2.130.0130.05011.68
5.2.120.0030.06011.68
5.2.110.0000.04011.68
5.2.100.0030.04011.68
5.2.90.0100.04011.68
5.2.80.0030.06011.68
5.2.70.0100.06011.68
5.2.60.0070.06011.68
5.2.50.0070.05011.68
5.2.40.0070.05711.68
5.2.30.0000.07011.68
5.2.20.0030.06011.68
5.2.10.0100.05011.68
5.2.00.0170.05011.68
5.1.60.0070.04311.68
5.1.50.0070.04011.68
5.1.40.0030.05711.68
5.1.30.0000.04011.68
5.1.20.0030.05011.68
5.1.10.0030.05711.68
5.1.00.0000.04311.68
5.0.50.0030.03011.68
5.0.40.0030.04311.68
5.0.30.0030.05711.68
5.0.20.0000.05011.68
5.0.10.0070.03311.68
5.0.00.0030.06311.68
4.4.90.0000.03011.68
4.4.80.0000.03711.68
4.4.70.0030.03311.68
4.4.60.0070.02711.68
4.4.50.0030.02711.68
4.4.40.0000.05711.68
4.4.30.0000.03711.68
4.4.20.0000.04011.68
4.4.10.0070.01311.68
4.4.00.0000.04311.68
4.3.110.0000.03711.68
4.3.100.0000.02311.68
4.3.90.0030.03711.68
4.3.80.0030.03311.68
4.3.70.0030.02011.68
4.3.60.0070.01311.68
4.3.50.0070.03011.68
4.3.40.0000.05711.68
4.3.30.0000.03311.68
4.3.20.0000.03711.68
4.3.10.0000.03711.68
4.3.00.0000.03011.68

preferences:
38.78 ms | 401 KiB | 5 Q