Need help delete line from txt file

newprogram · December 8, 2009

I have a txt file about 100kb how would I delete a line for example

the text file look like

jkdslfsdf|dsfjhdsjkhfkds|fjhsdjkhfkjds

weruewu|dsifgsd|ewrtet

werioweuior|gdhfgh|wqerwqer

so if i want this line delete

"weruewu|dsifgsd|ewrtet"

Alex · December 8, 2009

$file = file('filename.txt');
$key = array_search('weruewu|dsifgsd|ewrtet', $file);
if($key)
     unset($file[$key]);
file_put_contents('filename.txt', implode("\n", $file));

newprogram · December 8, 2009

worked great thank you

$file = file('filename.txt');
$key = array_search('weruewu|dsifgsd|ewrtet', $file);
if($key)
     unset($file[$key]);
file_put_contents('filename.txt', implode("\n", $file));