PHP to download and replace the cost address of the image in the collected content, _php tutorial

PHP downloads and replaces the address of the cost of the image in the collected content.

Get all the addresses in the string to an array we use the Preg_match_all function

Code to copy code as follows
$str = '

';
$pattern = "/<[img| Img].*?src=[' | "] (.*? (?: [. gif|. JPG])) [' | ']. *? [/]?>/];
Preg_match_all ($pattern, $str, $match);p Rint_r ($match);
?>

Results

Array
(
[0] = = Array
(
[0] = =
)
[1] = = Array
(
[0] = upfiles/2009/07/1246430143_1.jpg
)
)

With the core function above, it's good to do it.

Code to copy code as follows
/**
* Get the picture path in the replacement article
* @param string $xstr content
* @param string $keyword Create a file name for the photo
* @param string $oriweb URL
* @return String
*
*/
function replaceimg ($xstr, $keyword, $oriweb) {

Save path
$d = Date (' Ymd ', Time ());
$DIRSLSITSS = '/var/www/weblist/uploads/'. $keyword. ' /'. $d;//whether the classification exists
if (www.111cn.net) (!is_dir ($DIRSLSITSS)) {
@mkdir ($DIRSLSITSS, 0777);
}

Matching images of SRC
Preg_match_all (' #]*> #i ', $xstr, $match);

foreach ($match [1] as $imgurl) {

$imgurl = $imgurl;

if (Is_int (Strpos ($imgurl, ' http '))) {
$arcurl = $imgurl;
} else {
$arcurl = $oriweb. $imgurl;
}
$img =file_get_contents ($arcurl);

if (!empty ($img)) {

Save picture to Server
$fileimgname = Time (). " -". Rand (1000,9999)." JPG ";
$filecachs = $dirslsitss. " /". $fileimgname;
$fanhuistr = File_put_contents ($filecachs, $img);
$saveimgfile = "/uploads/$keyword". " /". $d." /". $fileimgname;

$xstr =str_replace ($imgurl, $saveimgfile, $XSTR);
}
}
return $xstr;
}

From:http://www.111cn.net/phper/php-cy/48607.htm

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