PHP removes the regular expression of the string hyperlink text

Due to some bad actions performed a long time ago, some junk data exists on the website content page. this morning, I added a method to remove the text of the string hyperlink. next I will use the regular expression to process it. The function of the following instance is to filter all html tags and replace the h1-h5 before... due to some bad actions performed a long time ago, some junk data exists on the website content page. this morning, I added a method to remove the text of the string hyperlink. next I will use the regular expression to process it.

The functionality of the following instance is to filter all html tags and replace all text before the h1-h5

 %% '"; $ Query = mysql_query ($ SQL) or die (mysql_error (); if (mysql_num_rows ($ query) {while ($ rs = mysql_fetch_array ($ query )) {// print_r ($ rs); $ t = stripslashes ($ rs ['field']); $ str = nl2br (strip_tags (addslashes (removelink ($ t); $ SQL = "update table name set field = '$ str 'Where id = ". $ rs ['id']; if (mysql_query ($ SQL) {echo $ rs ['id']. 'success
';} Else {echo mysql_error () ;}} else {echo' has been updated and has not recorded '. $ SQL .'
';}} Function removelink ($ t) {// $ str = preg_replace ("/] * href = [^>] *> |
 ] *>/I "," ", $ t); $ str = preg_replace ("/(? Is )(? <= ).*? (? =)/I "," ", $ t); $ str = preg_replace ("/(? Is )(? <= ).*? (? =)/I "," ", $ str); $ str = preg_replace ("/(? Is )(? <= ).*? (? =)/I "," ", $ str); $ str = preg_replace ("/(? Is )(? <= ).*? (? =)/I "," ", $ str); $ str = preg_replace ("/(? Is )(? <= ).*? (? =)/I "," ", $ str); return re_h ($ str);} function re_h ($ str) {$ str = str_replace ('','', $ str); $ str = str_replace ('','', $ str); $ str = str_replace ('','', $ str ); $ str = str_replace ('','', $ str); $ str = str_replace ('','', $ str); $ str = str_replace ('', '', $ str); $ str = str_replace ('', '', $ str); $ str = str_replace ('', '', $ str ); $ str = str_replace ('','', $ str); $ str = str_replace ('','', $ str); re Turn $ str ;}?>

The following regular expression is used.

preg_replace("/(?is)(?<=).*?(?=)/i","",$t);

This is the core code.

For example, if you want to remove the hyperlink content from the text, you need to use a regular expression. For example, you can use $ str = preg_replace ("/] * href = [^>] *> | ] *>/I "," ", $ strhtml); to meet the requirements, see the following for more solutions.

1. delete the hyperlink in the content

ereg_replace(']*)>([^<]*)','2',$content);ereg_replace("]*>|","",$content);

2. remove hyperlinks containing specific words

$ Find = "this string is my find ";

$ String = 'replaced'; // The content of the hyperlink.

Echo ereg_replace ('] *)> ([^ <] *'. $ find. '[^>] *)', '2', $ content );

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