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<TITLE>BBS水木清华站∶精华区</TITLE></HEAD><BODY><CENTER><H1>BBS水木清华站∶精华区</H1></CENTER>发信人:&nbsp;thinkin&nbsp;(强强),&nbsp;信区:&nbsp;Linux&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR>标&nbsp;&nbsp;题:&nbsp;Character&nbsp;Functions&nbsp;&nbsp;<BR>发信站:&nbsp;BBS&nbsp;水木清华站&nbsp;(Thu&nbsp;Feb&nbsp;17&nbsp;11:01:08&nbsp;2000)&nbsp;<BR>&nbsp;<BR>&lt;?php&nbsp;<BR>/*&nbsp;Functions:&nbsp;Converted&nbsp;from&nbsp;&lt;ctype.h&gt;.&nbsp;<BR>&nbsp;*&nbsp;Author:&nbsp;John&nbsp;Millaway&nbsp;<BR>&nbsp;*&nbsp;<BR>&nbsp;*&nbsp;Note:&nbsp;These&nbsp;functions&nbsp;expect&nbsp;a&nbsp;character,&nbsp;<BR>&nbsp;*&nbsp;such&nbsp;as&nbsp;'a',&nbsp;or&nbsp;'?',&nbsp;not&nbsp;an&nbsp;integer.&nbsp;<BR>&nbsp;*&nbsp;If&nbsp;you&nbsp;want&nbsp;to&nbsp;use&nbsp;integers,&nbsp;first&nbsp;convert&nbsp;<BR>&nbsp;*&nbsp;the&nbsp;integer&nbsp;using&nbsp;the&nbsp;chr()&nbsp;function.&nbsp;<BR>&nbsp;*&nbsp;<BR>&nbsp;*&nbsp;Examples:&nbsp;<BR>&nbsp;*&nbsp;<BR>&nbsp;*&nbsp;isalpha('a');&nbsp;&nbsp;//&nbsp;returns&nbsp;1&nbsp;<BR>&nbsp;*&nbsp;isalpha(chr(97));&nbsp;//&nbsp;same&nbsp;thing&nbsp;<BR>&nbsp;*&nbsp;<BR>&nbsp;*&nbsp;isdigit(1);&nbsp;//&nbsp;NO!&nbsp;<BR>&nbsp;*&nbsp;isdigit('1');&nbsp;//&nbsp;yes.&nbsp;<BR>&nbsp;*/&nbsp;<BR>function&nbsp;isalnum&nbsp;($c){&nbsp;global&nbsp;$ctype__;&nbsp;return&nbsp;((($ctype__[(&nbsp;ord($c)&nbsp;)]&amp;(01&nbsp;&nbsp;<BR>|&nbsp;02&nbsp;|&nbsp;04&nbsp;))&nbsp;&nbsp;!=&nbsp;0)?1:0);}&nbsp;<BR>function&nbsp;isalpha&nbsp;($c){&nbsp;global&nbsp;$ctype__;&nbsp;return&nbsp;((($ctype__[(&nbsp;ord($c)&nbsp;)]&amp;(01&nbsp;&nbsp;<BR>|&nbsp;02&nbsp;))&nbsp;&nbsp;!=&nbsp;0)?1:0);}&nbsp;<BR>function&nbsp;isascii&nbsp;($c){&nbsp;global&nbsp;$ctype__;&nbsp;return&nbsp;((((&nbsp;ord($c)&nbsp;)&lt;=0177)&nbsp;&nbsp;!=&nbsp;0)?&nbsp;<BR>1:0);}&nbsp;<BR>function&nbsp;iscntrl&nbsp;($c){&nbsp;global&nbsp;$ctype__;&nbsp;return&nbsp;((($ctype__[(&nbsp;ord($c)&nbsp;)]&amp;&nbsp;040&nbsp;<BR>&nbsp;)&nbsp;&nbsp;!=&nbsp;0)?1:0);}&nbsp;<BR>function&nbsp;isdigit&nbsp;($c){&nbsp;global&nbsp;$ctype__;&nbsp;return&nbsp;((($ctype__[(&nbsp;ord($c)&nbsp;)]&amp;&nbsp;04&nbsp;&nbsp;<BR>)&nbsp;&nbsp;!=&nbsp;0)?1:0);}&nbsp;<BR>function&nbsp;isgraph&nbsp;($c){&nbsp;global&nbsp;$ctype__;&nbsp;return&nbsp;((($ctype__[(&nbsp;ord($c)&nbsp;)]&amp;(020&nbsp;<BR>&nbsp;|&nbsp;01&nbsp;|&nbsp;02&nbsp;|&nbsp;04&nbsp;))&nbsp;&nbsp;!=&nbsp;0)?1:0);}&nbsp;<BR>function&nbsp;islower&nbsp;($c){&nbsp;global&nbsp;$ctype__;&nbsp;return&nbsp;((($ctype__[(&nbsp;ord($c)&nbsp;)]&amp;&nbsp;02&nbsp;&nbsp;<BR>)&nbsp;&nbsp;!=&nbsp;0)?1:0);}&nbsp;<BR>function&nbsp;isprint&nbsp;($c){&nbsp;global&nbsp;$ctype__;&nbsp;return&nbsp;((($ctype__[(&nbsp;ord($c)&nbsp;)]&amp;(020&nbsp;<BR>&nbsp;|&nbsp;01&nbsp;|&nbsp;02&nbsp;|&nbsp;04&nbsp;|&nbsp;0200&nbsp;))&nbsp;&nbsp;!=&nbsp;0)?1:0);}&nbsp;<BR>function&nbsp;ispunct&nbsp;($c){&nbsp;global&nbsp;$ctype__;&nbsp;return&nbsp;((($ctype__[(&nbsp;ord($c)&nbsp;)]&amp;&nbsp;020&nbsp;<BR>&nbsp;)&nbsp;&nbsp;!=&nbsp;0)?1:0);}&nbsp;<BR>function&nbsp;isspace&nbsp;($c){&nbsp;global&nbsp;$ctype__;&nbsp;return&nbsp;((($ctype__[(&nbsp;ord($c)&nbsp;)]&amp;&nbsp;010&nbsp;<BR>&nbsp;)&nbsp;&nbsp;!=&nbsp;0)?1:0);}&nbsp;<BR>function&nbsp;isupper&nbsp;($c){&nbsp;global&nbsp;$ctype__;&nbsp;return&nbsp;((($ctype__[(&nbsp;ord($c)&nbsp;)]&amp;&nbsp;01&nbsp;&nbsp;<BR>)&nbsp;&nbsp;!=&nbsp;0)?1:0);}&nbsp;<BR>function&nbsp;isxdigit&nbsp;($c){&nbsp;global&nbsp;$ctype__;&nbsp;return&nbsp;((($ctype__[(&nbsp;ord($c)&nbsp;)]&amp;(01&nbsp;<BR>00&nbsp;|&nbsp;04&nbsp;))&nbsp;&nbsp;!=&nbsp;0)?1:0);}&nbsp;<BR>$ctype__&nbsp;=&nbsp;array(32,32,32,32,32,32,32,32,32,40,40,40,40,40,32,32,32,32,32,32&nbsp;<BR>,32,32,32,32,32,32,32,32,32,32,32,32,&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-120,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,4,4,4,4,&nbsp;<BR>4,4,4,4,4,4,16,16,16,16,16,16,&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;16,65,65,65,65,65,65,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1&nbsp;<BR>,1,16,16,16,16,16,&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;16,66,66,66,66,66,66,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2&nbsp;<BR>,2,16,16,16,16,32,&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,&nbsp;<BR>0,0,0,&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,&nbsp;<BR>0,0,0,&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,&nbsp;<BR>0,0,0,&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,&nbsp;<BR>0,0,0);&nbsp;<BR>?&gt;&nbsp;<BR>----------------------------------------------------------------------------&nbsp;<BR>----&nbsp;<BR>&nbsp;<BR>--&nbsp;<BR>&nbsp;<BR>人生到处知何似？&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;应似飞鸿踏雪泥。&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;泥上偶然留指爪，&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;鸿飞那复计东西！&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;<BR>※&nbsp;来源:·BBS&nbsp;水木清华站&nbsp;smth.org·[FROM:&nbsp;162.105.37.191]&nbsp;<BR><CENTER><H1>BBS水木清华站∶精华区</H1></CENTER></BODY></HTML>

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