3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(preg_match('/a/u', " ", $m, 0, 1)); var_dump(preg_last_error_msg()); var_dump(preg_match('/a/u', "\xE3\x82\xA2", $m, 0, 1)); var_dump(preg_last_error_msg());

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)
8.5.10.0150.00616.73
8.5.00.0080.01320.01
8.4.150.0030.00014.05
8.4.140.0110.01017.91
8.4.130.0100.00217.87
8.4.120.0110.00920.43
8.4.110.0080.01222.34
8.4.100.0170.00318.64
8.4.90.0090.00418.73
8.4.80.0130.00818.49
8.4.70.0110.00817.94
8.4.60.0110.00819.09
8.4.50.0110.01120.28
8.4.40.0070.01317.63
8.4.30.0100.01020.36
8.4.20.0100.01022.32
8.4.10.0030.00623.55
8.3.280.0120.01121.00
8.3.270.0130.00716.55
8.3.260.0120.00816.38
8.3.250.0140.00518.65
8.3.240.0040.00416.86
8.3.230.0140.00616.47
8.3.220.0100.00818.65
8.3.210.0070.00716.61
8.3.200.0060.00316.58
8.3.190.0120.00816.91
8.3.180.0130.00616.88
8.3.170.0140.00320.60
8.3.160.0090.00917.29
8.3.150.0130.00317.00
8.3.140.0050.00316.72
8.3.130.0040.00418.46
8.3.120.0040.00419.09
8.3.110.0060.00320.33
8.3.100.0070.00416.79
8.3.90.0040.00426.77
8.3.80.0060.00318.55
8.3.70.0150.00418.43
8.3.60.0110.00418.65
8.3.50.0100.01017.01
8.3.40.0100.00321.77
8.3.30.0090.00618.92
8.3.20.0000.00824.18
8.3.10.0080.00024.66
8.3.00.0000.00726.16
8.2.290.0050.00420.19
8.2.280.0060.01318.42
8.2.270.0150.00317.21
8.2.260.0050.00316.77
8.2.250.0040.00418.84
8.2.240.0130.00317.07
8.2.230.0000.01020.94
8.2.220.0100.00724.06
8.2.210.0080.00026.77
8.2.200.0070.00418.66
8.2.190.0040.01216.73
8.2.180.0140.00016.88
8.2.170.0130.00718.91
8.2.160.0030.01022.96
8.2.150.0040.00425.66
8.2.140.0040.00424.66
8.2.130.0030.00526.16
8.2.120.0000.00722.29
8.2.110.0070.00321.10
8.2.100.0110.00017.97
8.2.90.0290.00317.61
8.2.80.0280.00317.49
8.2.70.0320.00017.38
8.2.60.0210.00517.63
8.2.50.0160.01017.50
8.2.40.0230.00617.35
8.2.30.0240.00417.50
8.2.20.0280.00017.63
8.2.10.0240.00417.38
8.2.00.0230.00317.38
8.1.330.0110.00821.85
8.1.320.0100.01016.08
8.1.310.0040.01118.38
8.1.300.0060.00316.87
8.1.290.0030.00630.84
8.1.280.0120.00325.92
8.1.270.0040.00424.66
8.1.260.0090.00026.35
8.1.250.0090.00028.09
8.1.240.0090.00022.38
8.1.230.0060.00621.08
8.1.220.0290.00017.24
8.1.210.0250.00517.11
8.1.200.0240.00316.88
8.1.190.0250.00017.00
8.1.180.0180.00917.11
8.1.170.0190.00816.72
8.1.160.0210.00516.88
8.1.150.0160.01217.35
8.1.140.0180.00917.22
8.1.130.0250.00317.23
8.1.120.0220.00617.38
8.1.110.0270.00217.11
8.1.100.0200.00717.38
8.1.90.0230.00417.34
8.1.80.0120.01517.25
8.1.70.0200.00617.38
8.1.60.0230.00417.38
8.1.50.0230.00517.35
8.1.40.0290.00017.63
8.1.30.0270.00017.47
8.1.20.0280.00017.38
8.1.10.0210.00717.25
8.1.00.0240.00317.13
8.0.300.0200.00516.50
8.0.290.0210.00316.88
8.0.280.0240.00016.74
8.0.270.0300.00016.88
8.0.260.0240.00316.50
8.0.250.0220.00616.72
8.0.240.0170.01316.75
8.0.230.0220.00516.73
8.0.220.0260.00216.50
8.0.210.0270.00016.61
8.0.200.0140.01116.46
8.0.190.0220.00316.61
8.0.180.0190.00616.50
8.0.170.0220.00416.38
8.0.160.0210.00816.61
8.0.150.0300.00016.37
8.0.140.0250.00316.37
8.0.130.0190.00916.50
8.0.120.0230.00516.38
8.0.110.0250.00316.63
8.0.100.0230.00716.63
8.0.90.0200.00716.50
8.0.80.0240.00316.50
8.0.70.0210.00716.63
8.0.60.0200.01016.50
8.0.50.0160.00916.63
8.0.30.0170.00816.48
8.0.20.0200.00816.50
8.0.10.0190.00716.87

preferences:
115.82 ms | 403 KiB | 5 Q