3v4l.org

run code in 300+ PHP versions simultaneously
<?php $strings = [ 'Subject', // expect empty string '1234 Subject', // expect 1234 'Subject 5678', // expect 5678 '1234 Subject 5678', // expect 1234 'Test 1234 Subject 5678 test', // expect 1234 ]; var_export( preg_replace('/^\D+|\d+\K.*/', '', $strings) );

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)
8.5.10.0090.00818.95
8.5.00.0150.00621.88
8.4.150.0020.00014.05
8.4.140.0090.01217.68
8.4.130.0120.00817.68
8.4.120.0080.01220.74
8.4.110.0070.00118.92
8.4.100.0090.00817.90
8.4.90.0150.00518.27
8.4.80.0130.00817.86
8.4.70.0100.01017.93
8.4.60.0110.01118.47
8.4.50.0060.00217.93
8.4.40.0170.00319.71
8.4.30.0100.01020.29
8.4.20.0080.01117.88
8.4.10.0070.00319.56
8.3.280.0160.01218.06
8.3.270.0140.00616.78
8.3.260.0120.00816.68
8.3.250.0100.00918.32
8.3.240.0090.01116.95
8.3.230.0130.00818.59
8.3.220.0090.00917.24
8.3.210.0090.01016.75
8.3.200.0110.00816.75
8.3.190.0110.00718.89
8.3.180.0130.00916.88
8.3.170.0070.01119.00
8.3.160.0130.00616.91
8.3.150.0180.00020.42
8.3.140.0150.00416.66
8.3.130.0000.00818.73
8.3.120.0090.00018.72
8.3.110.0150.00620.94
8.3.100.0110.01124.06
8.3.90.0060.00326.77
8.3.80.0100.00016.63
8.3.70.0120.00916.75
8.3.60.0030.01618.31
8.3.50.0160.00223.73
8.3.40.0110.00418.69
8.3.30.0150.00018.69
8.3.20.0040.00420.73
8.3.10.0040.00420.16
8.3.00.0080.00820.95
8.2.290.0120.00820.23
8.2.280.0020.00618.35
8.2.270.0090.00916.90
8.2.260.0040.00419.01
8.2.250.0080.00018.57
8.2.240.0130.00716.93
8.2.230.0100.01022.58
8.2.220.0050.00537.54
8.2.210.0000.00826.77
8.2.200.0090.00016.75
8.2.190.0100.00716.59
8.2.180.0060.01318.41
8.2.170.0150.00022.96
8.2.160.0060.00920.37
8.2.150.0000.01024.18
8.2.140.0040.00424.66
8.2.130.0030.00626.16
8.2.120.0040.00426.16
8.2.110.0090.00020.38
8.2.100.0040.00818.03
8.2.90.0000.01117.75
8.2.80.0000.00818.77
8.2.70.0000.00817.63
8.2.60.0090.00017.63
8.2.50.0050.00318.05
8.2.40.0000.00718.03
8.2.30.0070.00019.33
8.2.20.0070.00018.07
8.2.10.0000.00719.08
8.2.00.0080.00019.12
8.1.330.0130.00621.93
8.1.320.0110.00916.02
8.1.310.0040.01118.50
8.1.300.0110.00017.91
8.1.290.0040.00418.88
8.1.280.0100.00725.92
8.1.270.0080.00020.70
8.1.260.0050.00226.35
8.1.250.0080.00028.09
8.1.240.0030.00623.86
8.1.230.0000.01120.86
8.1.220.0040.00418.74
8.1.210.0090.00018.77
8.1.200.0050.00317.36
8.1.190.0000.00817.23
8.1.180.0000.00818.10
8.1.170.0050.00517.62
8.1.160.0000.00718.98
8.1.150.0040.00418.72
8.1.140.0040.00418.84
8.1.130.0030.00320.28
8.1.120.0040.00417.47
8.1.110.0040.00417.54
8.1.100.0050.00317.56
8.1.90.0000.00717.57
8.1.80.0000.00817.42
8.1.70.0030.00517.45
8.1.60.0040.00417.65
8.1.50.0000.00817.47
8.1.40.0000.00817.50
8.1.30.0050.00317.65
8.1.20.0090.00017.75
8.1.10.0050.00317.50
8.1.00.0000.00817.48
8.0.300.0040.00418.77
8.0.290.0040.00416.88
8.0.280.0040.00418.32
8.0.270.0040.00418.06
8.0.260.0030.00320.00
8.0.250.0030.00317.12
8.0.240.0030.00317.08
8.0.230.0080.00017.07
8.0.220.0000.00717.04
8.0.210.0000.00817.05
8.0.200.0000.00616.98
8.0.190.0040.00417.07
8.0.180.0000.00817.09
8.0.170.0070.00317.02
8.0.160.0090.00017.02
8.0.150.0040.00416.85
8.0.140.0000.00717.05
8.0.130.0030.00313.46
8.0.120.0030.00516.89
8.0.110.0050.00517.09
8.0.100.0030.00316.92
8.0.90.0030.00616.88
8.0.80.0090.00917.04
8.0.70.0000.00716.94
8.0.60.0040.00417.04
8.0.50.0040.00416.99
8.0.30.0100.00616.96
8.0.20.0100.01017.12
8.0.10.0070.00016.98
8.0.00.0130.01016.99
7.4.330.0000.00615.55
7.4.320.0000.00716.73
7.4.300.0030.00316.66
7.4.290.0030.00316.65
7.4.280.0040.00816.65
7.4.270.0080.00316.63
7.4.260.0030.00313.41
7.4.250.0040.00416.68
7.4.240.0000.00716.66
7.4.230.0000.00716.49
7.4.220.0050.00216.63
7.4.210.0100.00516.68
7.4.200.0000.00716.74
7.4.130.0060.01116.63
7.4.120.0130.01016.48
7.4.110.0070.01116.61
7.4.100.0100.01316.83
7.4.90.0060.01316.74
7.4.80.0160.00919.39
7.4.70.0090.00616.54
7.4.60.0030.01916.59
7.4.50.0060.00916.56
7.4.40.0140.00916.72
7.4.20.0110.00716.29
7.4.10.0140.00316.45
7.4.00.0040.01516.48
7.3.330.0000.00716.19
7.3.320.0000.00613.08
7.3.310.0000.00716.40
7.3.300.0030.00316.25
7.3.290.0060.01016.38
7.3.260.0030.01416.23
7.3.240.0130.00816.47
7.3.230.0130.01016.36
7.3.210.0070.01016.45
7.3.200.0160.00016.77
7.3.190.0120.00916.16
7.3.180.0100.01316.37
7.3.170.0080.00816.57
7.3.160.0060.01316.56
7.3.140.0100.01016.50
7.3.130.0120.00916.40
7.3.120.0090.00616.53
7.3.110.0040.01316.36
7.3.100.0080.01216.62
7.3.90.0060.00916.18
7.3.80.0000.01616.30
7.3.70.0070.00716.33
7.3.60.0040.01216.34
7.3.50.0120.00816.41
7.3.40.0060.00916.26
7.3.30.0120.00316.32
7.3.20.0070.01016.30
7.3.10.0030.01316.33
7.3.00.0080.00816.39
7.2.330.0090.00916.54
7.2.320.0000.01716.68
7.2.310.0060.01016.58
7.2.300.0100.01016.51
7.2.290.0130.00916.63
7.2.270.0170.00016.59
7.2.260.0090.00916.61
7.2.250.0100.00616.63
7.2.240.0030.01416.41
7.2.230.0150.00616.50
7.2.220.0000.01616.68
7.2.210.0100.00616.41
7.2.200.0040.01216.43
7.2.190.0090.00916.45
7.2.180.0150.00316.55
7.2.170.0080.00816.60
7.2.160.0000.01616.64
7.2.150.0000.01616.73
7.2.140.0080.00816.59
7.2.130.0090.00916.55
7.2.120.0140.00316.48
7.2.110.0030.01916.54
7.2.100.0030.01916.77
7.2.90.0130.00616.68
7.2.80.0030.01516.57
7.2.70.0030.01316.67
7.2.60.0180.00916.56
7.2.50.0100.00716.73
7.2.40.0100.00616.68
7.2.30.0100.01016.61
7.2.20.0040.01416.55
7.2.10.0030.01316.49
7.2.00.0110.00516.68

preferences:
43.88 ms | 403 KiB | 5 Q