Delete line

[robertaccettura]

What is the best way (most efficient way) to delete a line in a text file:

abcd
1234
efgh
5678
ijkl
9101112
mnop

$delete_row = fg
//delete row whose contains "fg"

Thanks

[daphreeek]

<?php
$filename = "test.txt";
$delete_row = "12";

$file = file("$filename");
$i = 0;
$tmp = "";
while ($file[$i]) {
	if (!stristr($file[$i], $delete_row))
		$tmp .= $file[$i];
	$i++;
}

$file = fopen("$filename", "w");
fputs($file, $tmp);
fclose($file);
?>

That works nicely 🙂 It will delete all rows with 12 in then. Note that it is case insensitive - if you want it case sensitive then change !stristr( to !strstr(

Hope that helps 🙂
- Matt

[robertaccettura]

deleteline($ticket)

function deleteline($ticket){
	$filename = "$databasefile";
	$file = file("$filename");
	$i = 0;
	$tmp = "";
	while ($file[$i]) {
   	 	if (!stristr($file[$i], $ticket)){
     	   $tmp .= $file[$i];
   			 $i++;
			 }
	}
	$file = fopen("$filename", "w");
	fputs($file, $tmp);
	fclose($file);
	return 1;
}

That's line for line what I used.

Seems like an endless loop.

🙁

Thanks for your help