Anonymous

function delete_line($find, $file)
	{
		$contents = array();
		$new_contents = "";
		$find = trim($find);
		$return = false;
	 
		if(file_exists($file))
		{
			if(is_writable($file))
			{
				// open the file as an array, each line as an element
				if($contents = file($file))
				{
						// remove extra whitespace from each line
						$contents = array_map("trim", $contents);
						
						// loop through each line and see if it's the one we want<br />
						foreach($contents as $line_number => $line)
						{
							$lowercase_line = strtolower($line);
							$lowercase_find = strtolower($find);
							if($lowercase_line == $lowercase_find)
							{
								// this is where we remove the line
								unset($contents[$line_number]);
								$return = true;
							}
						}
						
						// put the lines back together with a \n between each
						$new_contents = implode("\n", $contents);
						
						// open the file and delete its old contents
						if(!$handle = fopen($file, 'w'))
						{
							//trigger_error("$file could not be opened for writing", E_USER_NOTICE);
							return false;
						}
						else
						{
	 
							if(fwrite($handle, $new_contents) !== false)
							{
								// it worked
								return $return;
							}
						}
				}
				else
				{
					//trigger_error("$file is not readable", E_USER_NOTICE);
					return false;
				}
			}
			else
			{
				//trigger_error("$file is not writable", E_USER_NOTICE);
				return false;
			}
		}
		else
		{
			//trigger_error("$file does not exist", E_USER_NOTICE);
			return false;
		}
		
	}