3v4l.org

run code in 300+ PHP versions simultaneously
<?php $format = 'Y-m-d'; $reqDate = date ( $format, strtotime ( '2016-03-30' ) )."\n"; echo $reqDate; // - 1 month echo date($format, strtotime("$reqDate -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)
8.3.40.0000.01418.66
8.3.30.0090.00619.07
8.3.20.0070.00020.16
8.3.10.0000.00822.09
8.3.00.0000.00822.34
8.2.170.0140.00322.96
8.2.160.0100.00319.33
8.2.150.0040.00425.66
8.2.140.0000.00724.66
8.2.130.0000.00826.16
8.2.120.0080.00317.75
8.2.110.0000.00922.21
8.2.100.0090.00319.76
8.2.90.0050.00219.25
8.2.80.0030.00618.16
8.2.70.0080.00017.75
8.2.60.0030.00518.16
8.2.50.0000.00818.07
8.2.40.0050.00318.34
8.2.30.0040.00418.23
8.2.20.0050.00217.82
8.2.10.0000.00718.05
8.2.00.0080.00019.68
8.1.270.0030.00623.99
8.1.260.0120.00026.35
8.1.250.0080.00028.09
8.1.240.0090.00023.96
8.1.230.0040.00719.23
8.1.220.0080.00017.77
8.1.210.0030.00518.77
8.1.200.0060.00317.60
8.1.190.0030.00517.66
8.1.180.0080.00018.72
8.1.170.0090.00018.76
8.1.160.0050.00322.06
8.1.150.0040.00418.84
8.1.140.0070.00317.60
8.1.130.0000.00817.70
8.1.120.0030.00317.74
8.1.110.0030.00517.59
8.1.100.0000.00717.76
8.1.90.0080.00017.73
8.1.80.0000.00717.73
8.1.70.0000.00717.65
8.1.60.0000.00717.75
8.1.50.0030.00517.75
8.1.40.0000.00717.67
8.1.30.0040.00417.70
8.1.20.0040.00417.89
8.1.10.0000.00717.76
8.1.00.0000.00717.71
8.0.300.0040.00418.77
8.0.290.0000.00717.18
8.0.280.0030.00318.64
8.0.270.0000.00717.29
8.0.260.0050.00517.07
8.0.250.0000.00717.22
8.0.240.0000.00817.10
8.0.230.0040.00717.10
8.0.220.0030.00317.14
8.0.210.0000.00717.15
8.0.200.0040.00417.11
8.0.190.0030.00617.07
8.0.180.0000.00717.25
8.0.170.0060.00317.17
8.0.160.0000.00717.09
8.0.150.0000.00817.11
8.0.140.0000.01016.99
8.0.130.0030.00313.49
8.0.120.0030.00517.13
8.0.110.0000.00717.18
8.0.100.0040.00417.21
8.0.90.0000.00817.04
8.0.80.0060.00917.04
8.0.70.0070.00016.95
8.0.60.0030.00317.00
8.0.50.0040.00417.03
8.0.30.0100.00817.27
8.0.20.0090.01317.40
8.0.10.0040.00417.12
8.0.00.0040.01416.97
7.4.330.0000.00515.21
7.4.320.0030.00316.74
7.4.300.0070.00016.73
7.4.290.0040.00416.68
7.4.280.0000.00716.70
7.4.270.0000.00816.73
7.4.260.0040.00416.73
7.4.250.0050.00316.59
7.4.240.0040.00416.71
7.4.230.0030.00316.53
7.4.220.0060.01216.70
7.4.210.0030.01216.73
7.4.200.0070.00016.79
7.4.190.0000.00816.77
7.4.160.0120.00316.59
7.4.150.0110.00717.40
7.4.140.0110.01017.86
7.4.130.0090.01116.73
7.4.120.0130.00316.70
7.4.110.0100.00716.78
7.4.100.0080.00816.86
7.4.90.0070.01116.50
7.4.80.0110.00719.39
7.4.70.0110.00616.51
7.4.60.0040.01416.67
7.4.50.0000.00916.38
7.4.40.0060.00922.77
7.4.30.0060.00916.37
7.4.00.0060.00914.95
7.3.330.0060.00013.46
7.3.320.0000.00513.34
7.3.310.0000.00716.31
7.3.300.0000.00616.36
7.3.290.0030.01316.45
7.3.280.0090.00616.46
7.3.270.0110.00617.40
7.3.260.0120.00816.65
7.3.250.0100.00816.78
7.3.240.0090.00816.86
7.3.230.0130.01016.64
7.3.210.0090.00916.51
7.3.200.0120.00416.77
7.3.190.0080.01416.76
7.3.180.0060.00916.66
7.3.170.0060.01016.62
7.3.160.0110.00416.54
7.3.120.0090.00915.26
7.2.330.0120.00616.85
7.2.320.0000.01716.74
7.2.310.0140.00316.74
7.2.300.0060.01016.64
7.2.290.0160.00016.65
7.1.70.0000.01017.25
7.1.60.0190.00619.82
7.1.50.0130.01017.22
7.1.00.0000.07722.41
7.0.200.0000.01016.97
7.0.140.0000.07722.21
7.0.100.0070.08019.96
7.0.90.0100.10020.02
7.0.80.0070.08019.83
7.0.70.0100.04019.86
7.0.60.0070.04019.88
7.0.50.0170.05320.34
7.0.40.0070.04320.15
7.0.30.0030.05020.08
7.0.20.0030.04320.15
7.0.10.0030.09020.18
7.0.00.0070.03720.14
5.6.280.0070.07021.04
5.6.250.0130.07320.62
5.6.240.0070.06320.63
5.6.230.0200.06020.71
5.6.220.0070.03720.55
5.6.210.0000.06320.75
5.6.200.0070.04020.93
5.6.190.0070.04021.02
5.6.180.0130.05721.02
5.6.170.0030.04721.09
5.6.160.0100.04720.95
5.6.150.0100.06021.07
5.6.140.0030.04321.08
5.6.130.0070.04021.05
5.6.120.0000.04020.94
5.6.110.0200.08321.01
5.6.100.0100.04021.15
5.6.90.0070.04021.07
5.6.80.0000.04320.42
5.6.70.0000.08020.54
5.6.60.0030.07020.30
5.6.50.0000.04020.33
5.6.40.0000.04320.37
5.6.30.0030.04020.31
5.6.20.0000.04320.45
5.6.10.0000.04320.42
5.6.00.0070.07020.42
5.5.380.0070.04720.56
5.5.370.0070.08320.34
5.5.360.0030.04320.43
5.5.350.0130.03720.36
5.5.340.0100.03720.86
5.5.330.0100.03720.88
5.5.320.0070.05020.87
5.5.310.0030.04020.84
5.5.300.0030.05720.88
5.5.290.0100.03720.63
5.5.280.0070.08020.88
5.5.270.0000.05020.85
5.5.260.0030.06720.78
5.5.250.0000.04320.72
5.5.240.0030.04020.18
5.5.230.0030.04020.27
5.5.220.0100.03320.12
5.5.210.0100.03720.17
5.5.200.0030.04020.26
5.5.190.0100.03020.25
5.5.180.0100.03719.98
5.5.160.0100.03720.10
5.5.150.0030.04020.10
5.5.140.0070.06019.98
5.5.130.0030.07720.11
5.5.120.0170.07020.27
5.5.110.0070.04020.20
5.5.100.0100.07720.07
5.5.90.0130.04320.15
5.5.80.0100.07719.96
5.5.70.0070.04720.09
5.5.60.0170.07020.16
5.5.50.0230.03720.14
5.5.40.0030.06320.02
5.5.30.0130.07019.95
5.5.20.0100.07020.05
5.5.10.0070.03720.00
5.5.00.0030.05020.11
5.4.450.0030.03719.29
5.4.440.0030.03719.39
5.4.430.0100.04719.46
5.4.420.0070.04019.13
5.4.410.0200.02019.11
5.4.400.0070.03319.05
5.4.390.0030.04318.81
5.4.380.0000.05018.96
5.4.370.0000.04019.06
5.4.360.0070.03719.03
5.4.350.0070.04018.99
5.4.340.0000.04018.81
5.4.320.0170.03019.14
5.4.310.0030.04019.23
5.4.300.0100.03019.04
5.4.290.0000.04019.05
5.4.280.0170.07719.12
5.4.270.0070.06318.94
5.4.260.0230.05319.05
5.4.250.0030.07019.00
5.4.240.0130.07019.02
5.4.230.0000.08018.93
5.4.220.0070.08019.12
5.4.210.0130.06719.22
5.4.200.0070.07319.02
5.4.190.0030.08319.21
5.4.180.0070.04318.89
5.4.170.0100.07718.80
5.4.160.0000.08019.01
5.4.150.0030.07719.05
5.4.140.0070.05016.32
5.4.130.0030.04316.44
5.4.120.0030.03716.32
5.4.110.0130.05716.31
5.4.100.0030.05316.36
5.4.90.0100.07016.26
5.4.80.0030.06316.48
5.4.70.0130.07016.42
5.4.60.0070.06316.39
5.4.50.0000.07316.18
5.4.40.0130.06316.26
5.4.30.0100.06316.32
5.4.20.0100.06316.33
5.4.10.0100.07016.18
5.4.00.0070.07315.75
5.3.290.0030.03314.48
5.3.280.0100.04714.58
5.3.270.0030.08014.60
5.3.260.0070.07714.46
5.3.250.0070.03714.48
5.3.240.0130.03714.56
5.3.230.0200.06014.50
5.3.220.0000.08314.55
5.3.210.0100.05014.41
5.3.200.0100.06014.52
5.3.190.0070.06314.39
5.3.180.0130.06714.38
5.3.170.0030.04014.52
5.3.160.0130.06714.42
5.3.150.0030.05714.56
5.3.140.0070.07714.39
5.3.130.0070.03714.49
5.3.120.0100.06314.53
5.3.110.0030.08314.50
5.3.100.0170.06014.03
5.3.90.0000.07014.01
5.3.80.0100.05313.97
5.3.70.0030.03713.99
5.3.60.0000.04313.77
5.3.50.0100.06313.90
5.3.40.0030.08013.93
5.3.30.0030.08013.66
5.3.20.0100.05013.67
5.3.10.0030.06713.64
5.3.00.0000.04013.59
5.2.170.0070.03011.43
5.2.160.0100.06011.43
5.2.150.0030.06011.43
5.2.140.0100.06311.43
5.2.130.0030.06011.43
5.2.120.0070.03011.43
5.2.110.0030.03011.43
5.2.100.0030.06011.43
5.2.90.0070.04011.43
5.2.80.0070.05311.43
5.2.70.0070.03011.43
5.2.60.0130.05311.43
5.2.50.0100.04311.43
5.2.40.0070.05711.43
5.2.30.0130.05711.43
5.2.20.0100.06011.43
5.2.10.0070.04011.43
5.2.00.0000.05311.43
5.1.60.0100.05011.43
5.1.50.0070.05311.43
5.1.40.0070.05311.43
5.1.30.0000.03311.43
5.1.20.0000.03311.43
5.1.10.0070.06011.43
5.1.00.0000.04011.43
5.0.50.0070.03311.43
5.0.40.0070.01711.43
5.0.30.0030.06011.43
5.0.20.0030.02311.43
5.0.10.0070.04011.43
5.0.00.0100.04011.43
4.4.90.0000.03311.43
4.4.80.0000.02711.43
4.4.70.0000.04011.43
4.4.60.0000.03711.43
4.4.50.0070.03011.43
4.4.40.0000.05311.43
4.4.30.0070.02311.43
4.4.20.0030.03711.43
4.4.10.0000.03311.43
4.4.00.0070.02311.43
4.3.110.0000.02011.43
4.3.100.0030.03011.43
4.3.90.0030.01711.43
4.3.80.0030.05311.43
4.3.70.0000.03711.43
4.3.60.0030.02711.43
4.3.50.0030.03711.43
4.3.40.0000.05311.43
4.3.30.0000.03311.43
4.3.20.0000.03711.43
4.3.10.0000.02711.43
4.3.00.0000.03311.43

preferences:
41.65 ms | 400 KiB | 5 Q