PHP processes the keywords in the text content in red ,. PHP sets the red color for keywords in the text content. sometimes, when we display an article, some keywords may need to be set to red and highlighted, so that we can use PHP to set the red color for keywords in the text content,
Sometimes, when we display an article, some keywords may need to be highlighted in red so that we can quickly find and locate these keywords, next let's look at the specific implementation code.
/*** Red-keyword setting method ** @ access public * @ param array $ options parameter array *
$ Info_arr array content*
$ Search_arr array keyword array* @ Return int or array */function set_arr_keyword_red ($ info_arr, $ search_arr) {foreach ($ search_arr as $ search_str) {foreach ($ info_arr as $ key => $ info) {if (in_array ($ key, array ('item _ title', 'keyword', 'Photo _ title', 'Photo _ site', 'content ',))) {$ info = strip_tags ($ info); $ info = str_replace ('','', $ info); $ q_str_pos = stripos ($ info, $ search_str ); if (false! ==$ Q_str_pos) {$ info = csubstr ($ info, $ q_str_pos + 150); $ temp = csubstr ($ info, $ q_str_pos-150); $ info = substr ($ info, strlen ($ temp), 300); $ info = preg_replace ("/{$ search_str}/I", "{$ search_str}", $ info ); if ($ info_arr ['match _ key'] = '') $ info_arr ['match _ key'] = $ key;} else {$ info = csubstr ($ info, 300) ;}}$ info_arr [$ key] = $ info ;}return $ info_arr ;}$ str = 'woloveu '; $ info_arr = array ('photo _ title' => 'womejiojd, we all fight against static and low fart, Xiaojun chicken frozen, soaking basin big '); $ search_arr = array ('xiaojun '); $ ret = set_arr_keyword_red ($ info_arr, $ search_arr); dump ($ ret );
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When we display an article, some keywords may need to be highlighted to make it faster...
