Mega Code Archive
Delete lines from a file
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<title>removing lines from a file</title>
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<?php
// this function strips a specific line from a file
// if no linenumber is specified, last line is stripped
// if a line is stripped, functions returns True else false
//
// e.g.
// cutline('foo.txt'); // strip last line
// cutline('foo.txt',1); // strip first line
/* its probably a good idea to allow access to this file via a password. otherwise, anyone that knows its in your directory could delete lines of text from the file you specify below! */
function cutline($filename,$line_no=-1) {
$strip_return=FALSE;
$data=file($filename);
$pipe=fopen($filename,'w');
$size=count($data);
if($line_no==-1) $skip=$size-1;
else $skip=$line_no-1;
for($line=0;$line<$size;$line++)
if($line!=$skip)
fputs($pipe,$data[$line]);
else
$strip_return=TRUE;
return $strip_return;
}
cutline('foo.txt',6); // deletes line 6 in foo.txt
}
?>
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