Php code used to check whether the URL address and http address format are valid
- /**
- Desc: Check whether the network address format is valid
- Link: bbs.it-home.org
- Date:
- */
- Function checkUrl ($ weburl)
- {
- Return! Ereg ("^ http (s) *: // [_ a-zA-Z0-9-] + (. [_ a-zA-Z0-9-] +) * $", $ weburl );
- }?>
2. determine whether the http address is valid
/** - Desc: checks whether the http address is valid
- Link: bbs.it-home.org
- Date:
- */
- Function url_exists ($ url)
- {
- $ Ch = curl_init ();
- Curl_setopt ($ ch, CURLOPT_URL, $ url );
- Curl_setopt ($ ch, CURLOPT_NOBODY, 1); // do not download
- Curl_setopt ($ ch, CURLOPT_FAILONERROR, 1 );
- Curl_setopt ($ ch, CURLOPT_RETURNTRANSFER, 1 );
- Return (curl_exec ($ ch )! = False )? True: false;
- }
// Method 2 - Function img_exists ($ url)
- {
- Return file_get_contents ($ url, 0, null, 0, 1 )? True: false;
- }
// Method 3: - Function url_exists ($ url)
- {
- $ Head = @ get_headers ($ url );
- Return is_array ($ head )? True: false;
- }?>
Call example:
- $ Url = 'http: // bbs.it-home.org ';
- Echo url_exists ($ url );
- ?>
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