3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo ltrim('#+&!','#&!+'); $channel_name = 'someChannelName'; function isValidChannelName($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],',$name); } var_dump(isValidChannelName($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)
8.3.60.0130.00716.88
8.3.50.0060.01022.07
8.3.40.0070.01418.79
8.3.30.0120.00318.98
8.3.20.0020.00520.35
8.3.10.0050.00321.97
8.3.00.0040.00422.46
8.2.180.0130.00316.38
8.2.170.0100.00722.96
8.2.160.0120.00921.07
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0080.00019.48
8.2.110.0070.00322.11
8.2.100.0120.00017.97
8.2.90.0050.00319.13
8.2.80.0000.00817.97
8.2.70.0060.00318.93
8.2.60.0040.00418.04
8.2.50.0080.00018.10
8.2.40.0070.00020.55
8.2.30.0060.00318.13
8.2.20.0080.00017.80
8.2.10.0040.00419.44
8.2.00.0040.00417.81
8.1.280.0110.00725.92
8.1.270.0040.00423.91
8.1.260.0050.00326.35
8.1.250.0000.00828.09
8.1.240.0070.00322.29
8.1.230.0120.00017.70
8.1.220.0050.00317.74
8.1.210.0070.00218.77
8.1.200.0100.00017.38
8.1.190.0040.00417.48
8.1.180.0060.00318.10
8.1.170.0060.00318.78
8.1.160.0070.00022.24
8.1.150.0030.00518.64
8.1.140.0070.00017.57
8.1.130.0070.00017.84
8.1.120.0000.00817.45
8.1.110.0030.00617.51
8.1.100.0000.00717.55
8.1.90.0080.00017.54
8.1.80.0080.00017.60
8.1.70.0040.00417.55
8.1.60.0030.00617.79
8.1.50.0060.00317.64
8.1.40.0080.00017.62
8.1.30.0040.00417.78
8.1.20.0030.00517.76
8.1.10.0050.00317.63
8.1.00.0040.00417.60
8.0.300.0000.01118.77
8.0.290.0040.00416.88
8.0.280.0000.00718.45
8.0.270.0040.00417.14
8.0.260.0030.00316.89
8.0.250.0040.00416.95
8.0.240.0060.00317.02
8.0.230.0030.00316.89
8.0.220.0000.00716.98
8.0.210.0000.00716.91
8.0.200.0050.00216.99
8.0.190.0000.00816.98
8.0.180.0040.00416.96
8.0.170.0050.00316.98
8.0.160.0060.00316.92
8.0.150.0040.00416.99
8.0.140.0000.00716.95
8.0.130.0090.00013.40
8.0.120.0040.00416.84
8.0.110.0070.00016.86
8.0.100.0050.00216.90
8.0.90.0000.00816.76
8.0.80.0060.01017.01
8.0.70.0060.00316.82
8.0.60.0040.00416.94
8.0.50.0050.00216.86
8.0.30.0190.00517.31
8.0.20.0110.00917.40
8.0.10.0030.00517.13
8.0.00.0090.00917.14
7.4.330.0000.00515.00
7.4.320.0070.00016.75
7.4.300.0030.00316.79
7.4.290.0070.00016.82
7.4.280.0000.00716.68
7.4.270.0030.00316.68
7.4.260.0000.00716.80
7.4.250.0000.00816.68
7.4.240.0040.00416.74
7.4.230.0030.00316.66
7.4.220.0060.01516.68
7.4.210.0100.00916.74
7.4.200.0030.00316.55
7.4.190.0070.00016.93
7.4.160.0050.01016.76
7.4.150.0060.01217.40
7.4.140.0100.01417.86
7.4.130.0130.00516.66
7.4.120.0110.00616.60
7.4.110.0130.00716.60
7.4.100.0110.00616.89
7.4.90.0150.00716.82
7.4.80.0090.00916.71
7.4.70.0100.01016.71
7.4.60.0060.01016.63
7.4.50.0000.00416.39
7.4.40.0040.00822.77
7.4.30.0070.01016.75
7.4.00.0060.01115.17
7.3.330.0060.00013.29
7.3.320.0030.00313.38
7.3.310.0070.00016.42
7.3.300.0000.00716.26
7.3.290.0070.00716.40
7.3.280.0070.01016.38
7.3.270.0140.00317.40
7.3.260.0120.00616.41
7.3.250.0110.00816.59
7.3.240.0180.00316.43
7.3.230.0110.00516.46
7.3.210.0130.00916.80
7.3.200.0120.00619.39
7.3.190.0070.01016.79
7.3.180.0090.01316.61
7.3.170.0090.00916.66
7.3.160.0140.00316.70
7.3.120.0080.00914.93
7.3.110.0070.01014.99
7.3.100.0080.00614.93
7.3.90.0090.00614.77
7.3.80.0080.00714.74
7.3.70.0030.00814.90
7.3.60.0070.00714.93
7.3.50.0060.00714.93
7.3.40.0070.00614.94
7.3.30.0080.00414.88
7.3.20.0040.00916.70
7.3.10.0050.00816.85
7.3.00.0060.00816.70
7.2.330.0100.00716.71
7.2.320.0090.00916.79
7.2.310.0000.01816.72
7.2.300.0030.01316.80
7.2.290.0070.01216.70
7.2.250.0090.00915.23
7.2.240.0070.01015.15
7.2.230.0040.00915.15
7.2.220.0080.00615.01
7.2.210.0050.00815.06
7.2.200.0040.00915.18
7.2.190.0050.00815.05
7.2.180.0080.00515.02
7.2.170.0030.01015.13
7.2.130.0060.00917.16
7.2.120.0070.00717.05
7.2.110.0120.00416.72
7.2.100.0060.00917.07
7.2.90.0040.00817.00
7.2.80.0100.00717.18
7.2.70.0070.01116.78
7.2.60.0100.01017.03
7.2.50.0030.01017.12
7.2.40.0070.01116.98
7.2.30.0100.00716.80
7.2.20.0100.00317.04
7.2.10.0030.01016.95
7.2.00.0060.00817.08
7.1.330.0040.01015.79
7.1.320.0030.00916.01
7.1.310.0070.00715.83
7.1.300.0070.00615.82
7.1.290.0060.00715.85
7.1.280.0080.00615.82
7.1.270.0060.00615.81
7.1.260.0040.01015.72
7.1.250.0100.00316.03
7.1.100.0100.00618.12
7.1.70.0060.00917.24
7.1.60.0220.00419.82
7.1.50.0130.01316.99
7.1.00.0070.07322.46
7.0.200.0080.00017.06
7.0.140.0000.07722.04
7.0.60.0100.08319.89
7.0.50.0070.08017.90
7.0.40.0000.08720.15
7.0.30.0370.07020.26
7.0.20.0300.07020.17
7.0.10.0270.07020.12
7.0.00.0130.08020.31
5.6.280.0070.07021.08
5.6.210.0100.06020.61
5.6.200.0130.04318.25
5.6.190.0130.07720.43
5.6.180.0070.09720.46
5.6.170.0470.06720.52
5.6.160.0130.07720.45
5.6.150.0000.04718.19
5.6.140.0030.08018.18
5.6.130.0070.04718.18
5.6.120.0170.08021.08
5.6.110.0070.07021.02
5.6.100.0200.06721.14
5.6.90.0200.07320.88
5.6.80.0130.06320.36
5.6.70.0370.07020.38
5.5.350.0000.03320.47
5.5.340.0030.07717.99
5.5.330.0130.07020.21
5.5.320.0370.07320.27
5.5.310.0300.04720.30
5.5.300.0100.08017.98
5.5.290.0070.04718.08
5.5.280.0100.08320.98
5.5.270.0070.08320.77
5.5.260.0070.04020.73
5.5.250.0100.07020.80
5.5.240.0000.05020.27
5.4.450.0400.04319.54
5.4.440.0530.04319.42
5.4.430.0570.07319.56
5.4.420.0570.04719.48
5.4.410.0100.05719.05
5.4.400.0130.04718.89
5.4.390.0170.05318.84
5.4.380.0170.05018.75
5.4.370.0270.05318.63
5.4.360.0170.06018.84
5.4.350.0230.06718.84
5.4.340.0330.06018.58
5.4.320.0070.04012.50
5.4.310.0030.04112.50
5.4.300.0080.03412.50
5.4.290.0070.04112.50
5.4.280.0090.03512.40
5.4.270.0060.03612.40
5.4.260.0080.03812.40
5.4.250.0050.03912.40
5.4.240.0060.04312.40
5.4.230.0060.04312.39
5.4.220.0050.03612.39
5.4.210.0040.04212.39
5.4.200.0050.04012.39
5.4.190.0160.04312.38
5.4.180.0180.03912.38
5.4.170.0250.03912.40
5.4.160.0210.07712.39
5.4.150.0210.04512.39
5.4.140.0130.04712.07
5.4.130.0160.04412.05
5.4.120.0200.04312.01
5.4.110.0180.04712.01
5.4.100.0470.08512.01
5.4.90.0180.04312.01
5.4.80.0300.06012.01
5.4.70.0130.04712.01
5.4.60.0120.05112.01
5.4.50.0170.04412.00
5.4.40.0270.03311.99
5.4.30.0150.04711.99
5.4.20.0310.08511.99
5.4.10.0150.04311.98
5.4.00.0190.03611.47
5.3.290.0110.05312.80
5.3.280.0110.04312.71
5.3.270.0170.04312.72
5.3.260.0140.04512.71
5.3.250.0180.04212.72
5.3.240.0170.04312.72
5.3.230.0190.04212.71
5.3.220.0200.04212.68
5.3.210.0120.05012.68
5.3.200.0150.04412.68
5.3.190.0120.04812.67
5.3.180.0150.04512.67
5.3.170.0160.04712.67
5.3.160.0170.04312.67
5.3.150.0140.04712.68
5.3.140.0120.04812.66
5.3.130.0180.04412.66
5.3.120.0190.08012.66
5.3.110.0130.04712.66
5.3.100.0130.04612.14
5.3.90.0170.04112.11
5.3.80.0180.07312.09
5.3.70.0150.04412.09
5.3.60.0210.03812.08
5.3.50.0210.03912.02
5.3.40.0150.04512.02
5.3.30.0150.04311.99
5.3.20.0130.04511.76
5.3.10.0140.04211.73
5.3.00.0160.04111.71
5.2.170.0140.0349.21
5.2.160.0130.0339.21
5.2.150.0160.0329.21
5.2.140.0140.0339.21
5.2.130.0140.0339.17
5.2.120.0230.0839.17
5.2.110.0120.0359.18
5.2.100.0150.0329.18
5.2.90.0090.0379.19
5.2.80.0180.0299.17
5.2.70.0170.0349.17
5.2.60.0100.0389.13
5.2.50.0300.0509.09
5.2.40.0170.0339.07
5.2.30.0120.0339.05
5.2.20.0140.0349.05
5.2.10.0160.0328.94
5.2.00.0140.0318.80
5.1.60.0120.0278.08
5.1.50.0120.0318.07
5.1.40.0080.0318.07
5.1.30.0140.0358.41
5.1.20.0110.0318.44
5.1.10.0140.0348.15
5.1.00.0420.0648.15
5.0.50.0150.0276.64
5.0.40.0120.0246.49
5.0.30.0120.0376.31
5.0.20.0110.0256.28
5.0.10.0110.0226.25
5.0.00.0080.0376.24
4.4.90.0080.0174.78
4.4.80.0100.0164.76
4.4.70.0090.0184.76
4.4.60.0070.0204.76
4.4.50.0090.0164.77
4.4.40.0090.0284.71
4.4.30.0120.0144.76
4.4.20.0100.0154.84
4.4.10.0050.0204.85
4.4.00.0060.0304.76
4.3.110.0090.0154.67
4.3.100.0070.0174.66
4.3.90.0060.0184.64
4.3.80.0100.0244.58
4.3.70.0190.0354.63
4.3.60.0060.0174.63
4.3.50.0070.0174.63
4.3.40.0080.0254.54
4.3.30.0040.0193.29
4.3.20.0050.0173.28
4.3.10.0040.0183.25
4.3.00.0000.02015.18

preferences:
53.39 ms | 401 KiB | 5 Q