inserting lines

[vvuiverine]

how can php write a line to the middle of a file?

Just can't get it to work...

Thanx

[intenz]

Write the file to an array, change the array, write the array to the file.

[vvuiverine]

how do I change the array?

that is the part that is making this so difficult for me.

[intenz]

$linenr = 5;
$array[$linenr-1] = 'bla';

[vvuiverine]

Thanks so much for the help but it is still not working.

When defining the index to put the new array element all other elements are knocked off the end of the array:

function insert_line($addLine, $position) {

$buffer = file("lines.inc");


$buffer[$position] = $addLine."\n";

for($i=0; $i<=$bufflines; $i++) {
	echo($buffer[$i]);  //should be fwrite just testing in what order the array is populated
}

}

insert_line("line2","1");   //trying to insert line2 between line1 and line3 in lines.inc

[vvuiverine]

Got it figured out

function insert_line($addLine, $position) {

$buffer = file("lines.inc");


for($i=0; $i<count($buffer); $i++) {
	if($i != $position) {
		$buffer2[] = $buffer[$i];
	} else{
		$buffer2[$position] = $addLine."\r\n";
	}
}

$difference = array_diff($buffer,$buffer2);
$merged = array_merge($buffer2,$difference);



$fp = fopen("lines.inc","w");
fwrite($fp, implode("",$merged));



}

insert_line("line5","4");