PHP through curl to achieve the timing task of the Image capture function Example _php tips

The example of this article tells the PHP through curl to realize the timing task of the image capture function. Share to everyone for your reference, specific as follows:

below for you to introduce a PHP timing task through the curl image of the capture example, hope that the example to everyone help, the basic idea is through a URL connection, will all the pictures of the address crawl down, and then loop open the picture, using the file operation function download down, save to the local, The alt attribute of the picture is also crawled down, and finally the data is saved to its own database.

Nonsense not to say, look at the program can understand, which, need to use PHP timed task and PHP a Third-party plug-in simple_html_dom.php use, reference simple_html_dom download and use.

<?php function GetLink ($url) {include_once (' simple_html_dom.php ');
  $ch = Curl_init ();
  curl_setopt ($ch, Curlopt_url, $url);
  curl_setopt ($ch, Curlopt_header,false);
  curl_setopt ($ch, curlopt_returntransfer,1);
  $output = curl_exec ($ch);
  Curl_close ($ch);
  $html = new Simple_html_dom ();
 $html->load ($output);
  $links = Array ();
 $arr = Array ();
  $title = Array (); foreach ($html->find (' a ') as $element) {if (Preg_match (' #^\/content_[0-9]+_1\.html$ #i ', $element->href)) {Arra
  Y_push ($links, ' http://www.jb51.net '. $element->href);
 Array_push ($title, $element->title);
 }} $links = Array_values (Array_unique ($links));
 $title = Array_values (Array_unique ($title));
 $arr [' links '] = $links;
 $arr [' title '] = $title;
 return $arr;
 function loadimg ($url, $dirname) {include_once (' simple_html_dom.php ');
 $ch = Curl_init ();
 curl_setopt ($ch, Curlopt_url, $url);
 curl_setopt ($ch, Curlopt_header,false);
 curl_setopt ($ch, curlopt_returntransfer,1); $output = Curl_exec ($CH);
 Curl_close ($ch);
 $html = new Simple_html_dom ();
 $html->load ($output);
 $arr = Array ();
 foreach ($html->find (' img[w] ') as $element) {$image = $element->src;
  } $data = file_get_contents ($image);
    $info = getimagesize ($image);//Get picture information, size, format switch ($info [2]) {Case 1: $str = ' gif ';
   Break
    Case 2: $str = ' jpg ';
   Break
    Case 3: $str = ' png ';
   Break
    Default:continue;
  Break } if ($info [1] < | | $info [0] < continue;//picture is too small, not a valuable picture, skip this cycle $filename = time (). Rand (1,999999).
  $STR;
  if (!is_dir ($dirname)) {mkdir ($dirname, 0777,true);
  } $fp = fopen ($dirname. $filename, ' W ');
  Fwrite ($fp, $data);
  Fclose ($FP);
return $dirname. $filename;
  } do{set_time_limit (0);
  Ignore_user_abort ();
  $img = GetLink (' http://www.jb51.net/qutu_1.html ');
  $count = count ($img [' links ']);
  $arr = Array ();
  For ($i =0 $i < $count; $i + +) {$arr []=loadimg ($img [' Links '] [$i], ' images/');
  $img [' url '] = $arr; Echo ' <br/> ';
  $img [' title '];
  $res = Array ();
  $len = count ($img [' title ']);
  Re-assemble the data into our common two-dimensional array, facilitate the database processing of data for ($i =0; $i < $len; $i + +) {$res [$i] [' title '] = $img [' title '] [$i];
  $res [$i] [' url '] = $img [' url '] [$i]; foreach ($res as $item) {echo '  '. $item [title]. '
  <br/> ';
  } $interval = 24*3600;
  Sleep ($interval);

 }while (true);?>

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I hope this article will help you with the PHP program design.