A simple way to get a picture and div content in a Web page _php instance of PHP

1, get all the pictures in the Web page:

Copy Code code as follows:

<?php
Gets the contents of the address and stores it in the $text
$text =file_get_contents (' http://www.jb51.net/');

Gets all the IMG tags and stores them in a two-dimensional array $match
Preg_match_all ('/]*>/i ', $text, $match);

Print out match
Print_r ($match);
?>

2, get the first picture of the Web page:

Copy Code code as follows:

<?php
Gets the contents of the address and stores it in the $text
$text =file_get_contents (' http://www.jb51.net/');

Gets the first IMG tag and stores it in a two-dimensional array $match
Preg_match ('/]*>/ui ', $text, $match);

Print out match
Print_r ($match);
?>

3. Get the specific div block data in the specified Web page:

Copy Code code as follows:

<?php
Gets the contents of the address and stores it in the $text
$text =file_get_contents (' http://www.jb51.net/');

Remove line break and white space characters (serialized content only needed to be used)
$text =str_replace (Array ("/R", "/n", "/t", "/S"), ", $text);

Remove the div tag and postcontent the contents of the ID, and save it to a two-dimensional array $match
Preg_match ('/<div[^>]*id= "Postcontent" [^>]*> (. *?) <//div>/si ', $text, $match);

Print out match[0]
Print ($match [0]);
?>

4. The integration of the above 2 and 3:

Copy Code code as follows:

<?php
Gets the contents of the address and stores it in the $text
$text =file_get_contents (' http://www.jb51.net/');

Remove the div tag and postcontent the contents of the ID, and save it to a two-dimensional array $match
Preg_match ('/<div[^>]*id= "Postcontent" [^>]*> (. *?) <//div>/si ', $text, $match);

Gets the first IMG tag and stores it in a two-dimensional array $match 2
Preg_match ('/]*>/ui ', $text, $match 2);

Print out match2[0]
Print_r ($match 2[0]);
?>