/**
 * 显示网页源代码
 *
 * @param 
 * @author 编程之家 jb51.cc jb51.cc
 **/
$lines = file('http://google.com/');
foreach ($lines as $line_num => $line) {
 // loop thru each line and prepend line numbers
 echo "Line #<b>{$line_num}</b> : " . htmlspecialchars($line) . "<br>\n";
}