3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(strtotime('-1 day')); $str = '1day'; var_dump(strtotime("-{$str}"));

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)
8.3.60.0070.00716.63
8.3.50.0130.00821.99
8.3.40.0150.00018.84
8.3.30.0080.00818.75
8.3.20.0070.00020.33
8.3.10.0000.00823.60
8.3.00.0040.00419.30
8.2.180.0150.00018.54
8.2.170.0080.00822.96
8.2.160.0070.00722.24
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0060.00317.88
8.2.120.0030.00626.35
8.2.110.0000.00920.65
8.2.100.0110.00017.97
8.2.90.0040.00419.35
8.2.80.0000.00817.97
8.2.70.0000.00917.88
8.2.60.0040.00417.93
8.2.50.0090.00018.07
8.2.40.0100.00019.41
8.2.30.0000.00820.58
8.2.20.0050.00317.83
8.2.10.0000.00818.11
8.2.00.0000.00818.21
8.1.280.0100.00325.92
8.1.270.0040.00422.31
8.1.260.0040.00428.09
8.1.250.0060.00328.09
8.1.240.0030.00622.07
8.1.230.0040.00720.89
8.1.220.0000.00817.79
8.1.210.0000.00818.77
8.1.200.0000.01017.25
8.1.190.0030.00517.25
8.1.180.0030.00618.10
8.1.170.0080.00018.47
8.1.160.0000.00822.07
8.1.150.0000.00718.97
8.1.140.0030.00519.50
8.1.130.0070.00017.68
8.1.120.0000.00717.69
8.1.110.0060.00317.65
8.1.100.0050.00217.59
8.1.90.0050.00217.66
8.1.80.0000.00817.66
8.1.70.0030.00517.65
8.1.60.0000.00817.71
8.1.50.0060.00317.65
8.1.40.0040.00417.64
8.1.30.0060.00317.61
8.1.20.0030.00617.77
8.1.10.0000.00717.62
8.1.00.0050.00517.68
8.0.300.0000.00918.77
8.0.290.0000.00717.00
8.0.280.0030.00318.58
8.0.270.0000.00817.45
8.0.260.0000.00717.06
8.0.250.0060.00317.30
8.0.240.0000.00817.09
8.0.230.0000.00717.25
8.0.220.0050.00317.14
8.0.210.0060.00317.03
8.0.200.0000.00617.18
8.0.190.0040.00417.10
8.0.180.0000.00817.10
8.0.170.0090.00017.04
8.0.160.0030.00317.13
8.0.150.0070.00017.09
8.0.140.0080.00317.12
8.0.130.0040.00413.57
8.0.120.0030.00617.11
8.0.110.0000.00717.15
8.0.100.0020.00517.03
8.0.90.0000.00816.97
8.0.80.0090.00617.08
8.0.70.0040.00417.14
8.0.60.0040.00416.89
8.0.50.0050.00316.88
8.0.30.0090.00817.36
8.0.20.0090.01217.45
8.0.10.0070.00017.23
8.0.00.0100.00716.86
7.4.330.0020.00216.77
7.4.320.0060.00016.65
7.4.300.0000.00716.72
7.4.290.0030.00316.54
7.4.280.0040.00416.71
7.4.270.0070.00016.68
7.4.260.0030.00316.69
7.4.250.0040.00416.56
7.4.240.0000.00716.67
7.4.230.0070.00016.56
7.4.220.0090.00916.64
7.4.210.0080.00616.67
7.4.200.0030.00316.51
7.4.160.0100.00316.50
7.4.150.0030.01617.40
7.4.140.0070.01417.86
7.4.130.0110.00916.68
7.4.120.0120.00916.63
7.4.110.0110.00716.53
7.4.100.0060.01416.51
7.4.90.0070.01016.70
7.4.80.0100.01319.39
7.4.70.0110.00816.81
7.4.60.0100.00716.83
7.4.50.0090.00616.76
7.4.40.0120.00616.41
7.4.30.0130.00316.41
7.4.10.0070.01015.09
7.4.00.0070.01014.97
7.3.330.0030.00313.11
7.3.320.0000.00613.28
7.3.310.0070.00016.35
7.3.300.0000.00916.25
7.3.290.0060.00816.41
7.3.280.0090.00916.40
7.3.270.0130.00717.40
7.3.260.0100.01316.68
7.3.250.0080.01116.40
7.3.240.0070.01316.51
7.3.230.0060.01116.76
7.3.210.0090.00916.44
7.3.200.0110.01216.61
7.3.190.0000.01716.51
7.3.180.0100.00616.43
7.3.170.0100.00616.77
7.3.160.0110.00716.63
7.3.130.0070.01015.03
7.3.120.0070.01114.92
7.3.110.0040.01514.63
7.3.100.0090.00615.17
7.3.90.0030.01314.91
7.3.80.0080.00814.94
7.3.70.0060.00615.04
7.3.60.0110.00415.01
7.3.50.0100.00714.55
7.3.40.0130.00314.96
7.3.30.0030.01015.02
7.3.20.0030.01016.91
7.3.10.0100.00316.85
7.3.00.0040.01116.73
7.2.330.0150.00316.63
7.2.320.0090.00916.73
7.2.310.0030.01316.64
7.2.300.0060.01016.49
7.2.290.0130.00616.58
7.2.260.0030.01215.14
7.2.250.0000.01914.98
7.2.240.0090.00315.16
7.2.230.0040.01215.16
7.2.220.0070.01014.87
7.2.210.0090.00614.81
7.2.200.0090.00315.15
7.2.190.0090.00915.27
7.2.180.0070.00714.94
7.2.170.0030.01015.26
7.2.160.0000.00915.08
7.2.150.0030.00817.12
7.2.140.0100.00716.72
7.2.130.0100.00616.89
7.2.120.0030.00617.09
7.2.110.0030.01017.02
7.2.100.0080.00616.64
7.2.90.0000.01417.15
7.2.80.0030.00717.07
7.2.70.0150.00417.00
7.2.60.0060.01016.85
7.2.50.0090.00617.15
7.2.40.0070.00317.12
7.2.30.0070.00316.88
7.2.20.0030.01216.96
7.2.10.0120.00316.99
7.2.00.0080.00618.28
7.1.330.0120.00315.99
7.1.320.0060.00316.07
7.1.310.0130.00315.78
7.1.300.0060.01015.62
7.1.290.0030.01316.04
7.1.280.0100.00315.96
7.1.270.0080.00415.71
7.1.260.0030.00915.70
7.1.250.0040.01115.89
7.1.240.0030.01415.98
7.1.230.0070.00716.06
7.1.220.0030.00615.78
7.1.210.0000.00816.03
7.1.200.0090.00215.97
7.1.190.0000.01515.87
7.1.180.0040.01416.02
7.1.170.0060.00816.03
7.1.160.0000.01115.97
7.1.150.0060.00316.00
7.1.140.0060.00915.99
7.1.130.0060.00615.89
7.1.120.0030.00815.86
7.1.110.0090.00615.90
7.1.100.0060.01017.10
7.1.90.0000.01315.89
7.1.80.0090.00015.68
7.1.70.0020.01116.53
7.1.60.0070.00917.69
7.1.50.0080.01116.47
7.1.40.0000.01315.88
7.1.30.0060.01015.99
7.1.20.0030.00715.69
7.1.10.0070.00315.90
7.1.00.0050.04119.03
7.0.330.0110.00315.23
7.0.320.0090.00615.28
7.0.310.0060.01015.63
7.0.300.0000.01315.21
7.0.290.0030.00915.32
7.0.280.0030.00715.42
7.0.270.0060.00615.42
7.0.260.0000.01115.63
7.0.250.0050.00815.59
7.0.240.0060.00915.48
7.0.230.0030.00915.54
7.0.220.0060.00915.38
7.0.210.0130.00015.46
7.0.200.0160.00715.06
7.0.190.0110.00415.49
7.0.180.0000.01715.39
7.0.170.0060.00615.08
7.0.160.0040.01215.43
7.0.150.0130.00315.57
7.0.140.0070.01015.71
7.0.130.0070.01015.64
7.0.120.0090.00615.72
7.0.110.0040.00715.41
7.0.100.0070.00315.36
7.0.90.0040.01215.46
7.0.80.0030.00915.28
7.0.70.0030.00715.43
7.0.60.0040.02617.78
7.0.50.0030.02416.72
7.0.40.0030.05116.93
7.0.30.0140.02016.66
7.0.20.0240.03716.84
7.0.10.0070.04616.78
7.0.00.0050.03016.86
5.6.400.0060.01014.52
5.6.390.0040.00814.10
5.6.380.0070.00714.34
5.6.370.0030.00914.45
5.6.360.0060.00614.54
5.6.350.0070.00714.33
5.6.340.0120.00314.50
5.6.330.0030.00914.34
5.6.320.0070.01114.41
5.6.310.0060.00914.11
5.6.300.0060.00914.34
5.6.290.0060.00914.28
5.6.280.0070.02417.68
5.6.270.0110.00714.65
5.6.260.0110.00414.41
5.6.250.0090.00914.25
5.6.240.0000.01314.46
5.6.230.0060.00914.38
5.6.220.0030.00714.59
5.6.210.0080.02717.37
5.6.200.0030.03316.25
5.6.190.0030.05117.46
5.6.180.0280.02217.32
5.6.170.0100.05017.59
5.6.160.0080.04717.43
5.6.150.0070.04716.22
5.6.140.0100.02816.30
5.6.130.0000.02916.20
5.6.120.0080.03317.69
5.6.110.0050.02517.64
5.6.100.0070.03517.59
5.6.90.0120.04117.63
5.6.80.0050.04517.50
5.6.70.0030.00614.36
5.6.60.0000.01214.06
5.6.50.0140.00014.60
5.6.40.0090.00314.22
5.6.30.0110.00713.98
5.6.20.0080.00414.31
5.6.10.0060.00314.29
5.6.00.0070.00414.22
5.5.380.0090.00614.68
5.5.370.0040.00814.45
5.5.360.0040.01114.47
5.5.350.2180.02517.47
5.5.340.0090.04516.18
5.5.330.0080.04517.44
5.5.320.0050.04717.33
5.5.310.0080.02817.15
5.5.300.0070.02216.15
5.5.290.0040.04716.04
5.5.280.0080.03517.65
5.5.270.0100.03617.72
5.5.260.0120.03717.36
5.5.250.0100.01817.39
5.5.240.0110.02417.25
5.5.230.0060.00814.05
5.5.220.0090.00614.32
5.5.210.0030.01014.46
5.5.200.0100.00614.23
5.5.190.0090.00614.06
5.5.180.0040.01114.20
5.5.170.0090.00013.89
5.5.160.0030.01014.38
5.5.150.0030.00614.13
5.5.140.0070.00714.17
5.5.130.0070.00714.12
5.5.120.0030.01014.39
5.5.110.0000.01414.30
5.5.100.0030.00714.00
5.5.90.0000.01014.27
5.5.80.0030.00714.43
5.5.70.0030.00714.34
5.5.60.0070.00714.18
5.5.50.0030.01014.34
5.5.40.0000.01014.11
5.5.30.0040.01114.02
5.5.20.0070.00414.16
5.5.10.0070.00314.46
5.5.00.0070.00714.19

preferences:
45.94 ms | 401 KiB | 5 Q