3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo substr_count("Thursday 2017-07-06 2pm to 4pm", ' ');

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)
8.3.60.0140.00716.50
8.3.50.0070.00716.40
8.3.40.0150.00018.58
8.3.30.0040.01118.43
8.3.20.0040.00420.27
8.3.10.0000.01121.82
8.3.00.0080.00022.10
8.2.180.0180.00316.63
8.2.170.0070.01022.96
8.2.160.0070.01019.09
8.2.150.0190.00025.66
8.2.140.0060.00324.66
8.2.130.0000.00821.07
8.2.120.0030.00526.35
8.2.110.0100.00020.98
8.2.100.0070.00418.16
8.2.90.0040.00419.13
8.2.80.0040.00417.97
8.2.70.0070.00417.38
8.2.60.0040.00417.93
8.2.50.0040.00418.10
8.2.40.0050.00320.55
8.2.30.0040.00420.88
8.2.20.0080.00017.87
8.2.10.0060.00318.03
8.2.00.0000.00717.85
8.1.280.0100.01025.92
8.1.270.0040.00422.05
8.1.260.0000.00726.35
8.1.250.0070.00028.09
8.1.240.0060.00322.76
8.1.230.0090.00317.42
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0090.00017.23
8.1.190.0090.00317.10
8.1.180.0000.00718.10
8.1.170.0000.00918.54
8.1.160.0040.00418.98
8.1.150.0000.00720.49
8.1.140.0000.00719.31
8.1.130.0000.00718.75
8.1.120.0050.00317.39
8.1.110.0000.00817.33
8.1.100.0000.00817.28
8.1.90.0030.00317.34
8.1.80.0030.00617.22
8.1.70.0000.00817.27
8.1.60.0000.00717.32
8.1.50.0040.00417.37
8.1.40.0090.00017.26
8.1.30.0040.00417.53
8.1.20.0000.00717.44
8.1.10.0040.00417.45
8.1.00.0000.00717.23
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0040.00418.28
8.0.270.0000.00717.19
8.0.260.0000.00616.74
8.0.250.0030.00316.93
8.0.240.0030.00516.88
8.0.230.0030.00516.77
8.0.220.0000.00716.69
8.0.210.0050.00316.71
8.0.200.0000.00616.82
8.0.190.0040.00416.74
8.0.180.0070.00016.84
8.0.170.0030.00316.76
8.0.160.0060.00316.79
8.0.150.0000.00816.66
8.0.140.0030.00516.73
8.0.130.0000.00613.17
8.0.120.0040.00416.73
8.0.110.0040.00416.65
8.0.100.0040.00416.64
8.0.90.0000.00716.66
8.0.80.0030.01916.78
8.0.70.0080.00016.64
8.0.60.0040.00416.82
8.0.50.0050.00216.64
8.0.30.0080.01017.10
8.0.20.0090.01117.40
8.0.10.0030.00616.83
8.0.00.0140.00216.60
7.4.330.0050.00015.55
7.4.320.0000.00616.48
7.4.300.0040.00416.28
7.4.290.0000.00716.46
7.4.280.0070.00016.37
7.4.270.0030.00316.48
7.4.260.0070.00016.27
7.4.250.0040.00416.24
7.4.240.0030.00316.51
7.4.230.0060.00016.11
7.4.220.0100.01416.49
7.4.210.0070.00716.40
7.4.200.0000.00716.30
7.4.160.0070.01016.28
7.4.150.0120.00617.40
7.4.140.0120.00717.86
7.4.130.0110.00816.39
7.4.120.0100.01016.24
7.4.110.0090.00616.23
7.4.100.0120.00416.46
7.4.90.0070.01016.26
7.4.80.0100.01019.39
7.4.70.0090.00616.22
7.4.60.0090.00616.47
7.4.50.0050.00516.47
7.4.40.0040.01216.20
7.4.30.0130.00316.43
7.4.00.0060.01014.77
7.3.330.0000.00612.86
7.3.320.0000.00512.96
7.3.310.0070.00015.94
7.3.300.0030.00316.17
7.3.290.0100.00316.12
7.3.280.0080.01016.09
7.3.270.0110.00617.40
7.3.260.0060.01216.41
7.3.250.0120.00716.27
7.3.240.0070.01216.39
7.3.230.0120.00416.32
7.3.210.0100.00616.00
7.3.200.0110.00716.05
7.3.190.0070.01016.14
7.3.180.0060.01016.26
7.3.170.0100.00716.44
7.3.160.0110.00716.41
7.2.330.0030.01416.59
7.2.320.0060.01016.39
7.2.310.0100.00716.48
7.2.300.0110.01116.48
7.2.290.0120.00616.36
7.2.60.0000.01516.56
7.2.00.0000.01219.42
7.1.200.0030.00615.71
7.1.100.0060.00617.88
7.1.70.0150.00317.09
7.1.60.0300.01234.96
7.1.50.0270.01934.67
7.1.40.0180.01734.26
7.1.30.0320.01734.35
7.1.20.0300.02034.35
7.1.10.0060.01316.44
7.1.00.0130.00816.48
7.0.200.0120.00616.57
7.0.190.0100.00916.51
7.0.180.0000.01716.18
7.0.170.0090.01115.87
7.0.160.0110.01016.14
7.0.150.0100.01116.27
7.0.140.0030.01216.08
7.0.130.0070.01116.57
7.0.120.0030.01616.53
7.0.110.0080.00916.07
7.0.100.0090.00916.21
7.0.90.0070.01316.02
7.0.80.0060.01416.33
7.0.70.0050.01116.08
7.0.60.0030.01515.91
7.0.50.0110.00616.36
7.0.40.0090.00616.40
7.0.30.0060.01116.29
7.0.20.0000.01516.20
7.0.10.0030.01316.21
7.0.00.0060.01216.19

preferences:
40.17 ms | 401 KiB | 5 Q