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<HTML><HEAD> <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: thinkin (强强), 信区: Linux <BR>标 题: Cutting line from a file <BR>发信站: BBS 水木清华站 (Thu Feb 17 11:02:13 2000) <BR> <BR><?php <BR>// this function strips a specific line from a file <BR>// if no linenumber is specified, last line is stripped <BR>// if a line is stripped, functions returns True else false <BR>// <BR>// e.g. <BR>// cutline('foo.txt'); // strip last line <BR>// cutline('foo.txt',1); // strip first line <BR>function cutline($filename,$line_no=-1) { <BR>$strip_return=FALSE; <BR>$data=file($filename); <BR>$pipe=fopen($filename, 'w'); <BR>$size=count($data); <BR>if($line_no==-1) $skip=$size-1; <BR>else $skip=$line_no-1; <BR>for($line=0;$line<$size;$line++) <BR>if($line!=$skip) <BR>fputs($pipe,$data[$line]); <BR>else <BR>$strip_return=TRUE; <BR>return $strip_return; <BR>} <BR>?> <BR>-- <BR> <BR>人生到处知何似? <BR> 应似飞鸿踏雪泥。 <BR> 泥上偶然留指爪, <BR> 鸿飞那复计东西! <BR> <BR> <BR>※ 来源:·BBS 水木清华站 smth.org·[FROM: 162.105.37.191] <BR><CENTER><H1>BBS水木清华站∶精华区</H1></CENTER></BODY></HTML>
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