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) > 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)
8.3.60.0130.00716.63
8.3.50.0100.00916.63
8.3.40.0160.00018.63
8.3.30.0120.00918.88
8.3.20.0040.00418.86
8.3.10.0060.00318.72
8.3.00.0000.00919.36
8.2.180.0120.00316.75
8.2.170.0210.00022.96
8.2.160.0130.00318.84
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0050.00326.16
8.2.120.0120.00321.00
8.2.110.0030.00722.27
8.2.100.0090.00317.84
8.2.90.0040.00417.88
8.2.80.0050.00318.90
8.2.70.0100.00517.38
8.2.60.0000.00817.75
8.2.50.0040.00418.05
8.2.40.0040.00419.95
8.2.30.0000.00917.80
8.2.20.0100.00017.76
8.2.10.0000.00817.76
8.2.00.0030.00717.82
8.1.280.0140.00325.92
8.1.270.0100.00723.99
8.1.260.0060.00326.35
8.1.250.0090.00628.09
8.1.240.0060.00617.66
8.1.230.0090.00317.68
8.1.220.0000.00917.74
8.1.210.0030.00618.77
8.1.200.0080.00017.48
8.1.190.0050.00317.36
8.1.180.0030.00619.14
8.1.170.0040.00417.62
8.1.160.0070.00019.08
8.1.150.0000.00818.79
8.1.140.0080.00017.52
8.1.130.0030.00317.71
8.1.120.0070.00017.65
8.1.110.0040.00417.57
8.1.100.0030.00417.59
8.1.90.0000.00717.62
8.1.80.0050.00317.48
8.1.70.0080.00017.55
8.1.60.0050.00317.74
8.1.50.0040.00417.65
8.1.40.0040.00417.53
8.1.30.0000.00817.73
8.1.20.0030.00717.83
8.1.10.0070.00017.55
8.1.00.0030.00517.59
8.0.300.0030.00518.90
8.0.290.0060.00316.88
8.0.280.0000.00718.45
8.0.270.0000.00717.14
8.0.260.0070.00016.95
8.0.250.0060.00317.04
8.0.240.0040.00416.99
8.0.230.0070.00017.08
8.0.220.0040.00417.02
8.0.210.0070.00017.02
8.0.200.0000.00717.10
8.0.190.0040.00417.09
8.0.180.0000.00816.94
8.0.170.0030.00616.91
8.0.160.0040.00417.07
8.0.150.0080.00016.93
8.0.140.0040.00416.89
8.0.130.0060.00013.48
8.0.120.0050.00416.93
8.0.110.0080.00017.09
8.0.100.0040.00416.98
8.0.90.0000.00717.04
8.0.80.0000.01517.02
8.0.70.0070.00016.86
8.0.60.0080.00016.83
8.0.50.0020.00516.82
8.0.30.0060.01217.46
8.0.20.0110.00817.34
8.0.10.0000.00717.02
8.0.00.0060.01316.86
7.4.330.0000.00613.20
7.4.320.0040.00416.68
7.4.300.0000.00716.77
7.4.290.0000.00716.77
7.4.280.0080.00016.79
7.4.270.0050.00316.86
7.4.260.0000.00513.48
7.4.250.0040.00416.77
7.4.240.0030.00316.62
7.4.230.0040.00416.80
7.4.220.0100.01416.86
7.4.210.0090.01216.72
7.4.200.0040.00416.60
7.4.190.0030.00316.70
7.4.160.0060.00916.93
7.4.150.0070.01116.72
7.4.140.0060.01516.68
7.4.130.0070.01016.80
7.4.120.0130.00316.83
7.4.110.0030.02216.70
7.4.100.0070.01016.77
7.4.90.0170.00016.71
7.4.80.0060.01019.39
7.4.70.0120.00616.58
7.4.60.0100.00616.66
7.4.50.0050.00016.54
7.4.40.0070.01116.77
7.4.30.0040.01216.55
7.4.10.0100.00715.10
7.4.00.0110.00915.05
7.3.330.0000.00613.39
7.3.320.0050.00013.23
7.3.310.0000.00716.28
7.3.300.0000.00616.27
7.3.290.0140.00216.38
7.3.280.0110.00416.31
7.3.270.0100.00716.77
7.3.260.0080.00816.59
7.3.250.0060.01516.52
7.3.240.0070.01016.44
7.3.230.0030.01316.77
7.3.210.0090.01516.73
7.3.200.0000.02016.52
7.3.190.0110.01116.72
7.3.180.0090.00916.39
7.3.170.0090.00616.41
7.3.160.0000.01916.63
7.3.130.0060.01315.12
7.3.120.0160.00214.90
7.3.110.0030.01315.10
7.3.100.0030.01214.96
7.3.90.0090.00014.93
7.3.80.0070.00714.94
7.3.70.0080.01115.15
7.3.60.0100.00615.04
7.3.50.0000.01415.01
7.3.40.0130.00615.05
7.3.30.0030.00914.81
7.3.20.0070.00716.73
7.3.10.0070.01016.75
7.3.00.0090.00616.85
7.2.330.0080.00816.89
7.2.320.0100.00716.81
7.2.310.0090.00916.63
7.2.300.0030.01416.59
7.2.290.0150.00316.72
7.2.260.0060.01015.40
7.2.250.0000.01815.04
7.2.240.0060.00915.42
7.2.230.0030.01415.19
7.2.220.0050.00515.31
7.2.210.0090.00314.99
7.2.200.0060.00915.36
7.2.190.0060.00615.00
7.2.180.0090.00315.11
7.2.170.0150.00014.91
7.2.160.0090.00915.18
7.2.150.0040.01116.74
7.2.140.0060.00917.11
7.2.130.0130.01017.08
7.2.120.0030.01017.09
7.2.110.0070.01117.13
7.2.100.0070.01117.07
7.2.90.0060.00916.90
7.2.80.0090.00917.16
7.2.70.0000.01017.25
7.2.60.0030.00716.95
7.2.50.0040.00717.18
7.2.40.0000.01416.89
7.2.30.0030.00917.26
7.2.20.0090.00617.04
7.2.10.0030.01017.16
7.2.00.0070.00718.01
7.1.330.0030.01315.98
7.1.320.0100.00615.92
7.1.310.0070.01116.11
7.1.300.0030.00915.84
7.1.290.0040.01415.80
7.1.280.0100.00716.02
7.1.270.0090.00616.00
7.1.260.0140.00715.57
7.1.250.0080.00615.89
7.1.240.0070.00715.76
7.1.230.0040.01416.07
7.1.220.0100.00715.93
7.1.210.0060.00616.04
7.1.200.0030.00915.86
7.1.190.0060.00916.00
7.1.180.0060.00815.96
7.1.170.0070.01015.84
7.1.160.0060.00315.91
7.1.150.0000.01515.91
7.1.140.0060.00315.94
7.1.130.0070.00715.80
7.1.120.0090.00615.94
7.1.110.0000.01516.04
7.1.100.0040.00517.27
7.1.90.0030.01015.80
7.1.80.0030.00615.87
7.1.70.0080.00716.73
7.1.60.0060.01017.66
7.1.50.0110.00616.35
7.1.40.0100.00715.93
7.1.30.0060.00315.99
7.1.20.0000.00915.89
7.1.10.0040.01215.86
7.1.00.0060.04119.24
7.0.330.0000.01215.57
7.0.320.0000.01215.47
7.0.310.0030.01015.52
7.0.300.0000.01315.59
7.0.290.0060.00315.71
7.0.280.0030.01015.32
7.0.270.0100.00015.70
7.0.260.0070.00315.55
7.0.250.0030.00715.09
7.0.240.0040.00715.42
7.0.230.0090.00915.67
7.0.220.0070.00715.39
7.0.210.0130.00015.61
7.0.200.0060.00616.21
7.0.190.0040.01115.37
7.0.180.0100.00315.64
7.0.170.0040.00815.36
7.0.160.0000.01115.33
7.0.150.0030.01315.60
7.0.140.0060.03718.74
7.0.130.0060.00915.46
7.0.120.0050.03118.75
7.0.110.0040.01115.52
7.0.100.0090.00615.58
7.0.90.0130.00315.48
7.0.80.0090.00315.57
7.0.70.0070.00715.40
7.0.60.0070.04517.84
7.0.50.0050.03516.77
7.0.40.0130.04217.02
7.0.30.0250.03516.87
7.0.20.0180.04516.77
7.0.10.0070.05016.92
7.0.00.0080.04816.94
5.6.400.0000.01514.51
5.6.390.0000.01414.43
5.6.380.0060.01014.58
5.6.370.0040.01214.57
5.6.360.0030.01014.38
5.6.350.0000.01014.70
5.6.340.0090.00614.43
5.6.330.0070.00714.65
5.6.320.0000.01414.54
5.6.310.0060.00314.33
5.6.300.0070.00714.30
5.6.290.0030.00614.58
5.6.280.0090.03517.77
5.6.270.0070.01014.59
5.6.260.0070.01014.56
5.6.250.0030.01014.23
5.6.240.0090.00614.34
5.6.230.0000.01314.37
5.6.220.0030.01514.20
5.6.210.0100.04017.41
5.6.200.0020.02916.35
5.6.190.0050.04317.54
5.6.180.0170.03817.45
5.6.170.0120.02617.37
5.6.160.0030.02617.36
5.6.150.0100.02016.29
5.6.140.0060.02116.28
5.6.130.0090.04516.27
5.6.120.0070.02217.68
5.6.110.0030.02617.82
5.6.100.0070.03317.66
5.6.90.0050.05017.72
5.6.80.0050.03517.41
5.6.70.1630.01917.34
5.6.60.0070.00714.48
5.6.50.0000.01414.16
5.6.40.0030.01014.14
5.6.30.0060.00614.06
5.6.20.0030.01014.30
5.6.10.0080.00614.34
5.6.00.0000.01414.21
5.5.380.0080.00314.27
5.5.370.0070.00714.26
5.5.360.0000.01314.16
5.5.350.0120.04617.25
5.5.340.0020.03016.36
5.5.330.0070.02217.44
5.5.320.0120.02817.24
5.5.310.0130.02717.24
5.5.300.0040.04515.96
5.5.290.0030.03016.23
5.5.280.0030.02917.61
5.5.270.0110.03017.52
5.5.260.0030.04217.37
5.5.250.0080.04817.46
5.5.240.0190.03217.11
5.5.230.0090.00314.27
5.5.220.0080.00414.35
5.5.210.0070.00714.43
5.5.200.0090.00614.32
5.5.190.0070.00714.06
5.5.180.0030.01314.01
5.5.170.0100.00714.18
5.5.160.0030.01414.32
5.5.150.0080.00014.28
5.5.140.0070.01014.22
5.5.130.0070.00714.23
5.5.120.0110.00413.95
5.5.110.0030.01014.21
5.5.100.0070.00714.26
5.5.90.0060.00914.05
5.5.80.0070.00414.16
5.5.70.0030.01314.25
5.5.60.0000.01614.20
5.5.50.0030.00914.36
5.5.40.0040.01114.20
5.5.30.0070.00714.12
5.5.20.0090.00613.89
5.5.10.0110.00313.77
5.5.00.0040.01114.32
5.4.450.0130.03915.86
5.4.440.0140.02115.99
5.4.430.0250.03115.88
5.4.420.0160.03315.93
5.4.410.0100.03115.93
5.4.400.0110.02615.86
5.4.390.0150.04715.71
5.4.380.0120.03415.82
5.4.370.0080.02715.85
5.4.360.0100.04215.77
5.4.350.0130.03115.86
5.4.340.0130.02615.81
5.4.330.0080.00312.56
5.4.320.0120.03015.86
5.4.310.0100.02315.71
5.4.300.0150.03815.81
5.4.290.0150.03815.89
5.4.280.0150.02615.69
5.4.270.0100.02315.82
5.4.260.0100.02815.90
5.4.250.0100.02315.77
5.4.240.0150.03815.82
5.4.230.0120.03815.76
5.4.220.0060.02615.87
5.4.210.0080.02215.76
5.4.200.0800.02015.76
5.4.190.1020.02215.75
5.4.180.1020.02015.85
5.4.170.1100.02215.89
5.4.160.1020.02215.76
5.4.150.1170.02015.70
5.4.140.1020.02014.42
5.4.130.1020.02314.44
5.4.120.1010.01814.43
5.4.110.1080.02214.56
5.4.100.1020.02314.55
5.4.90.0740.02314.53
5.4.80.1010.02114.58
5.4.70.1030.02214.50
5.4.60.1080.02214.54
5.4.50.1020.03014.46
5.4.40.0980.02214.53
5.4.30.1120.02214.38
5.4.20.1080.02214.54
5.4.10.1080.02514.39
5.4.00.1100.02314.17
5.3.290.1140.02313.72
5.3.280.1080.02313.58
5.3.270.1100.02113.62
5.3.260.1000.02613.57
5.3.250.1110.02513.56
5.3.240.1030.02613.58
5.3.230.1080.02213.58
5.3.220.1080.02713.54
5.3.210.1120.02213.54
5.3.200.1020.01913.55
5.3.190.1010.02213.52
5.3.180.1000.02013.56
5.3.170.1120.02313.56
5.3.160.1030.02013.54
5.3.150.1020.02113.51
5.3.140.1050.01813.63
5.3.130.0980.02113.55
5.3.120.1050.02713.52
5.3.110.1100.02613.52
5.3.100.0980.02313.28
5.3.90.1000.02013.33
5.3.80.1060.02413.24
5.3.70.0120.02213.33
5.3.60.0080.01813.29
5.3.50.0280.02013.26
5.3.40.0900.02013.22
5.3.30.1180.02513.27
5.3.20.0920.02313.13
5.3.10.1080.02113.07
5.3.00.1170.02413.14
5.2.170.1600.02311.16
5.2.160.1900.02311.15
5.2.150.1630.02011.20
5.2.140.1870.03311.05
5.2.130.1770.02711.20
5.2.120.1030.03711.04
5.2.110.0070.02311.05
5.2.100.0070.05311.16
5.2.90.0230.05311.18
5.2.80.1470.02711.07
5.2.70.1500.03011.10
5.2.60.1800.03711.17
5.2.50.1700.03310.93
5.2.40.1230.03310.91
5.2.30.1470.04010.93
5.2.20.1270.03011.14
5.2.10.1570.02710.79
5.2.00.1300.03710.63
5.1.60.1370.0239.93
5.1.50.1300.02710.08
5.1.40.1470.0309.90
5.1.30.0070.05710.30
5.1.20.0070.05310.28
5.1.10.0000.04310.00
5.1.00.0270.0439.95
5.0.50.0630.0238.42
5.0.40.0630.0208.46
5.0.30.0630.0308.10
5.0.20.0670.0178.28
5.0.10.0770.0278.23
5.0.00.0930.0478.10
4.4.90.0900.0107.60
4.4.80.0730.0137.60
4.4.70.0830.0207.60
4.4.60.0800.0207.60
4.4.50.0700.0137.60
4.4.40.0800.0377.60
4.4.30.0800.0177.60
4.4.20.0770.0237.60
4.4.10.0630.0177.60
4.4.00.0770.0337.60
4.3.110.0630.0177.60
4.3.100.0770.0237.60
4.3.90.0770.0177.60
4.3.80.0000.0277.60
4.3.70.0000.0177.60
4.3.60.0000.0137.60
4.3.50.0000.0177.60
4.3.40.0000.0237.60
4.3.30.0000.0177.60
4.3.20.0030.0177.60
4.3.10.0000.0177.60
4.3.00.0030.0107.60

preferences:
41.05 ms | 400 KiB | 5 Q