3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo ltrim('#+&!','#&!+'); $channel_name = '#someChannel؏Name'; function isValidChannelName($name) { return preg_match('/^#[\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0B\x0C\x0E\x0F\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1A\x1B\x1C\x1D\x1E\x1F\x21\x22\x23\x24\x25\x26\x27\x28\x29\x2A\x2B\x2D\x2E\x2F\x30\x31\x32\x33\x34\x35\x36\x37\x38\x39\x3B\x3C\x3D\x3E\x3F\x40\x41\x42\x43\x44\x45\x46\x47\x48\x49\x4A\x4B\x4C\x4D\x4E\x4F\x50\x51\x52\x53\x54\x55\x56\x57\x58\x59\x5A\x5B\x5C\x5D\x5E\x5F\x60\x61\x62\x63\x64\x65\x66\x67\x68\x69\x6A\x6B\x6C\x6D\x6E\x6F\x70\x71\x72\x73\x74\x75\x76\x77\x78\x79\x7A\x7B\x7C\x7D\x7E\x7F\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8A\x8B\x8C\x8D\x8E\x8F\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9A\x9B\x9C\x9D\x9E\x9F\xA0\xA1\xA2\xA3\xA4\xA5\xA6\xA7\xA8\xA9\xAA\xAB\xAC\xAD\xAE\xAF\xB0\xB1\xB2\xB3\xB4\xB5\xB6\xB7\xB8\xB9\xBA\xBB\xBC\xBD\xBE\xBF\xC0\xC1\xC2\xC3\xC4\xC5\xC6\xC7\xC8\xC9\xCA\xCB\xCC\xCD\xCE\xCF\xD0\xD1\xD2\xD3\xD4\xD5\xD6\xD7\xD8\xD9\xDA\xDB\xDC\xDD\xDE\xDF\xE0\xE1\xE2\xE3\xE4\xE5\xE6\xE7\xE8\xE9\xEA\xEB\xEC\xED\xEE\xEF\xF0\xF1\xF2\xF3\xF4\xF5\xF6\xF7\xF8\xF9\xFA\xFB\xFC\xFD\xFE\xFF]+$/',$name) > 0; } var_dump(isValidChannelName($channel_name));

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)
8.3.60.0120.00616.38
8.3.50.0100.01318.41
8.3.40.0130.00318.66
8.3.30.0110.00418.97
8.3.20.0040.00418.90
8.3.10.0040.00418.85
8.3.00.0090.00317.63
8.2.180.0000.01518.51
8.2.170.0070.00722.96
8.2.160.0090.00618.95
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0080.00026.16
8.2.120.0040.00420.78
8.2.110.0060.00322.08
8.2.100.0110.00017.84
8.2.90.0040.00418.03
8.2.80.0040.00419.03
8.2.70.0040.00417.88
8.2.60.0040.00417.88
8.2.50.0050.00317.80
8.2.40.0060.00319.76
8.2.30.0080.00017.82
8.2.20.0030.00717.68
8.2.10.0060.00317.82
8.2.00.0030.00617.88
8.1.280.0060.01525.92
8.1.270.0040.00423.99
8.1.260.0060.01026.35
8.1.250.0040.00428.09
8.1.240.0060.00322.18
8.1.230.0090.00520.89
8.1.220.0080.00017.78
8.1.210.0000.00818.82
8.1.200.0040.00417.25
8.1.190.0000.00817.23
8.1.180.0040.00418.10
8.1.170.0080.00017.62
8.1.160.0040.00419.08
8.1.150.0000.00818.66
8.1.140.0050.00317.52
8.1.130.0030.00317.80
8.1.120.0040.00417.63
8.1.110.0000.00717.61
8.1.100.0040.00417.51
8.1.90.0000.00717.55
8.1.80.0050.00217.49
8.1.70.0000.00717.53
8.1.60.0000.00717.69
8.1.50.0000.00717.48
8.1.40.0040.00417.63
8.1.30.0000.01117.63
8.1.20.0070.00417.79
8.1.10.0030.00617.56
8.1.00.0040.00417.57
8.0.300.0060.00320.10
8.0.290.0040.00416.88
8.0.280.0030.00318.59
8.0.270.0040.00417.27
8.0.260.0030.00317.00
8.0.250.0080.00017.06
8.0.240.0000.00717.11
8.0.230.0040.00417.15
8.0.220.0000.00817.03
8.0.210.0030.00316.94
8.0.200.0000.00716.95
8.0.190.0070.00417.05
8.0.180.0050.00217.05
8.0.170.0000.00816.89
8.0.160.0050.00317.02
8.0.150.0060.00317.02
8.0.140.0040.00417.01
8.0.130.0000.00513.47
8.0.120.0000.01016.99
8.0.110.0040.00417.14
8.0.100.0040.00416.91
8.0.90.0040.00416.97
8.0.80.0060.00917.09
8.0.70.0030.00317.06
8.0.60.0000.00716.81
8.0.50.0050.00217.00
8.0.30.0120.00817.32
8.0.20.0080.01117.42
8.0.10.0040.00416.96
8.0.00.0050.01416.83
7.4.330.0000.00613.17
7.4.320.0060.00016.72
7.4.300.0030.00316.77
7.4.290.0000.00716.72
7.4.280.0080.00016.60
7.4.270.0070.00016.80
7.4.260.0000.00613.45
7.4.250.0060.00316.80
7.4.240.0050.00316.82
7.4.230.0000.00716.69
7.4.220.0070.01116.70
7.4.210.0100.01016.84
7.4.200.0030.00316.78
7.4.190.0030.00316.96
7.4.160.0050.01016.74
7.4.150.0040.01516.77
7.4.140.0070.01116.79
7.4.130.0080.00816.79
7.4.120.0130.01016.63
7.4.110.0110.01416.80
7.4.100.0070.01016.82
7.4.90.0120.00616.75
7.4.80.0040.01419.39
7.4.70.0030.01316.96
7.4.60.0130.00316.59
7.4.50.0060.00016.76
7.4.40.0070.00716.80
7.4.30.0140.00316.75
7.4.00.0030.01214.95
7.3.330.0030.00313.31
7.3.320.0000.00713.19
7.3.310.0040.00216.29
7.3.300.0030.00316.48
7.3.290.0060.00816.42
7.3.280.0050.01116.38
7.3.270.0060.01216.73
7.3.260.0140.00416.50
7.3.250.0110.01016.74
7.3.240.0110.00716.52
7.3.230.0110.00616.38
7.3.210.0070.01116.48
7.3.200.0080.00816.59
7.3.190.0100.01316.61
7.3.180.0110.00416.34
7.3.170.0110.00716.54
7.3.160.0100.00616.46
7.3.120.0060.00914.74
7.3.10.0040.01016.71
7.3.00.0070.00816.75
7.2.330.0030.01316.48
7.2.320.0070.01016.51
7.2.310.0090.01216.77
7.2.300.0100.00716.75
7.2.290.0070.01016.79
7.2.130.0050.00816.92
7.2.120.0080.00817.11
7.2.110.0050.00817.08
7.2.100.0040.00617.04
7.2.90.0070.00916.96
7.2.80.0100.00617.23
7.2.70.0110.00117.05
7.2.60.0070.01016.84
7.2.50.0070.00516.88
7.2.40.0020.01016.74
7.2.30.0020.01517.05
7.2.20.0040.00717.06
7.2.10.0040.00716.99
7.2.00.0070.00717.90
7.1.250.0070.00415.76
7.1.100.0050.00518.49
7.1.70.0060.00617.39
7.1.60.0100.01319.30
7.1.50.0130.00916.67
7.1.00.0030.04722.34
7.0.200.0080.00316.80
7.0.140.0000.07722.04
7.0.120.0030.05022.11
7.0.60.0030.07719.92
7.0.50.0130.04317.87
7.0.40.0200.07317.86
7.0.30.0070.08317.77
7.0.20.0070.08017.82
7.0.10.0030.08717.75
7.0.00.0000.05017.77
5.6.280.0030.07321.07
5.6.210.0100.05720.50
5.6.200.0100.06718.18
5.6.190.0070.07718.15
5.6.180.0030.04318.14
5.6.170.0070.07718.27
5.6.160.0070.05718.29
5.6.150.0030.07018.21
5.6.140.0030.04318.17
5.6.130.0070.04718.21
5.6.120.0130.03318.17
5.6.110.0030.08318.14
5.6.100.0070.07018.24
5.6.90.0100.07718.19
5.6.80.0070.06017.58
5.6.70.0070.08317.56
5.6.60.0030.08317.55
5.6.50.0030.08017.54
5.6.40.0200.06717.54
5.6.30.0070.07717.51
5.6.20.0100.05017.50
5.6.10.0030.04317.50
5.6.00.0100.07317.50
5.5.350.0200.04720.32
5.5.340.0100.06317.98
5.5.330.0100.06718.01
5.5.320.0000.08717.99
5.5.310.0030.08317.97
5.5.300.0130.07317.98
5.5.290.0000.04317.97
5.5.280.0030.04017.95
5.5.270.0100.07718.03
5.5.260.0070.06717.95
5.5.250.0070.07717.75
5.5.240.0100.04017.37
5.5.230.0130.05017.33
5.5.220.0000.06017.46
5.5.210.0070.08317.35
5.5.200.0000.04717.32
5.5.190.0100.06017.34
5.5.180.0170.06717.34
5.5.160.0030.07717.44
5.5.150.0000.05717.29
5.5.140.0070.04317.29
5.5.130.0000.04017.45
5.5.120.0000.04017.43
5.5.110.0030.03717.43
5.5.100.0000.04017.24
5.5.90.0100.03317.17
5.5.80.0030.03717.26
5.5.70.0030.04017.20
5.5.60.0030.04017.24
5.5.50.0070.03317.33
5.5.40.0030.03717.21
5.5.30.0070.03317.16
5.5.20.0070.04017.28
5.5.10.0030.03717.18
5.5.00.0100.03017.21
5.4.450.0130.03319.32
5.4.440.0070.04319.41
5.4.430.0130.06719.37
5.4.420.0100.07719.21
5.4.410.0070.06319.23
5.4.400.0030.05319.05
5.4.390.0100.07319.05
5.4.380.0070.05719.00
5.4.370.0070.05319.01
5.4.360.0070.05719.05
5.4.350.0070.07719.01
5.4.340.0170.06719.05
5.4.320.0170.06319.13
5.4.310.0100.07719.13
5.4.300.0070.05718.95
5.4.290.0070.05319.26
5.4.280.0030.03719.09
5.4.270.0030.04318.89
5.4.260.0000.04019.12
5.4.250.0100.04019.12
5.4.240.0000.04019.00
5.4.230.0030.04019.02
5.4.220.0030.05319.02
5.4.210.0030.03718.97
5.4.200.0000.04018.88
5.4.190.0070.03719.13
5.4.180.0000.04019.11
5.4.170.0030.05319.08
5.4.160.0030.03719.01
5.4.150.0000.04019.02
5.4.140.0000.03716.30
5.4.130.0100.03016.38
5.4.120.0000.03716.39
5.4.110.0070.03016.48
5.4.100.0000.03716.34
5.4.90.0030.03316.45
5.4.80.0030.03316.59
5.4.70.0000.04016.41
5.4.60.0100.03316.31
5.4.50.0030.03316.38
5.4.40.0000.03716.50
5.4.30.0000.03716.20
5.4.20.0030.05016.28
5.4.10.0000.06716.37
5.4.00.0100.07015.90
5.3.290.0030.08014.71
5.3.280.0070.03314.56
5.3.270.0030.04014.68
5.3.260.0030.03714.68
5.3.250.0030.03314.65
5.3.240.0070.03014.64
5.3.230.0070.04014.57
5.3.220.0000.03714.63
5.3.210.0030.04014.61
5.3.200.0030.03314.59
5.3.190.0000.04014.64
5.3.180.0000.04014.54
5.3.170.0070.03314.59
5.3.160.0030.03314.63
5.3.150.0070.03014.42
5.3.140.0000.03714.41
5.3.130.0000.04014.57
5.3.120.0030.03714.56
5.3.110.0030.04014.59
5.3.100.0030.08014.04
5.3.90.0030.07314.02
5.3.80.0000.07014.04
5.3.70.0030.06713.99
5.3.60.0100.04314.05
5.3.50.0100.07013.95
5.3.40.0030.04314.02
5.3.30.0170.07713.94
5.3.20.0030.07013.76
5.3.10.0070.05313.75
5.3.00.0100.03713.54
5.2.170.0030.06711.16
5.2.160.0070.05711.04
5.2.150.0030.03710.99
5.2.140.0000.04711.24
5.2.130.0030.06311.31
5.2.120.0000.05011.00
5.2.110.0070.06011.14
5.2.100.0070.06711.07
5.2.90.0100.06311.20
5.2.80.0030.04710.98
5.2.70.0000.04711.09
5.2.60.0000.06010.95
5.2.50.0030.04711.23
5.2.40.0030.05711.04
5.2.30.0100.05011.00
5.2.20.0030.06310.86
5.2.10.0070.03310.89
5.2.00.0070.04710.71
5.1.60.0070.03710.09
5.1.50.0000.02710.04
5.1.40.0070.05010.01
5.1.30.0030.03710.38
5.1.20.0000.03010.41
5.1.10.0000.06010.07
5.1.00.0000.03710.06
5.0.50.0000.0308.61
5.0.40.0030.0478.61
5.0.30.0000.0708.61
5.0.20.0030.0438.61
5.0.10.0030.0308.61
5.0.00.0030.0378.61
4.4.90.0030.0378.61
4.4.80.0000.0378.61
4.4.70.0000.0278.61
4.4.60.0000.0378.61
4.4.50.0030.0308.61
4.4.40.0000.0378.61
4.4.30.0030.0138.61
4.4.20.0000.0238.61
4.4.10.0000.0338.61
4.4.00.0070.0508.61
4.3.110.0030.0378.61
4.3.100.0000.0338.61
4.3.90.0070.0178.61
4.3.80.0070.0478.61
4.3.70.0030.0338.61
4.3.60.0100.0308.61
4.3.50.0030.0338.61
4.3.40.0030.0308.61
4.3.30.0030.0338.61
4.3.20.0070.0338.61
4.3.10.0000.0338.61
4.3.00.0000.0278.61

preferences:
43.85 ms | 401 KiB | 5 Q