Summary of commonly used collection functions in PHP (with code)

This article brings the content is about PHP commonly used in the collection function summary (with code), there is a certain reference value, the need for friends can refer to, I hope to help you.

These days concerned about the PHP collection procedures, only to find the content with PHP is so convenient to use the collection function is summarized here, convenient for later use!

Get all linked content and addresses

function Getallurl ($code) {preg_match_all ('/<a\s+href=["|\ ']? ( [^> "\ ']+) [" |\ ']?\s*[^>]*> ([^>]+] <\/a>/i ', $code, $arr); return Array (' name ' = = $arr [2], ' url ' = > $arr [1]);}

Get all the picture addresses

function Getimgsrc ($code) {$reg = "/]*src=\" (http:\/\/(. +) \ (. +) \. ( jpg|gif|bmp|bnp|png) \ "/isu";p reg_match_all ($reg, $code, $img _array, Preg_pattern_order); return $img _array[1];}

The current script URL

function Getselfurl () {if (!empty ($_server["Request_uri")) {$scriptName = $_server["Request_uri"]; $nowurl = $ ScriptName;} else{$scriptName = $_server["Php_self"];if (Empty ($_server["query_string"]) $nowurl = $scriptName; else $nowurl = $ ScriptName. "?". $_server["Query_string"];} return $nowurl;}

Convert full-width numbers to half-width numbers

function Getalabnum ($fnum) {$nums = Array ("0", "1", "2", "3", "4", "5", "6", "7", "8", "9"), $fnums = "0123456789"; for ($i =0; $i <=9; $i + +) $fnum = Str_replace ($nums [$i], $fnums [$i], $fnum); $fnum = Ereg_replace ("[^0-9\.]| ^0{1,} "," ", $fnum), if ($fnum = =" ") $fnum =0;return $fnum;}

Remove HTML tags

function text2html ($txt) {$txt = Str_replace ("", "", $txt) $txt = Str_replace ("<", "<", $txt); $txt = Str_replace (" > "," > ", $txt); $txt = Preg_replace ("/[\r\n]{1,}/isu "," <br/>\r\n ", $txt); return $txt;}

Clear HTML Tags

function clearhtml ($str) {$str = Str_replace (' < ', ' < ', $str) $str = Str_replace (' > ', ' > ', $str); return $str;}

Convert relative paths to absolute paths

function Relative2absolute ($content, $feed _url) {Preg_match ('/(HTTP|HTTPS|FTP): \/\//', $feed _url, $protocol); $ Server_url = Preg_replace ("/(http|https|ftp|news): \/\//", "", $feed _url); $server _url = Preg_replace ("/\/.*/", "", $ Server_url), if ($server _url = = ") {return $content;} if (isset ($protocol [0])) {$new _content = preg_replace ('/href= "\//', ' href= '. $protocol [0]. $server _url. ' /', $content); $new _content = preg_replace ('/src= "\//', ' src= '. $protocol [0]. $server _url. ' /', $new _content);} else {$new _content = $content;} return $new _content;}

Gets the contents of the specified tag

function Gettagdata ($str, $start, $end) {if ($start = = ' | | $end = = ') {return;} $str = Explode ($start, $str); $str = Explode ($end, $str [1]); return $str [0];}

Each line of the HTML table is converted to a CSV format array

function Gettrarray ($table) {$table = Preg_replace ("' <td[^>]*?> ' si ', '" ', $table); $table = Str_replace ("</ Td> ", '", ', $table); $table = Str_replace ("</tr>", "{tr}", $table);//Remove HTML Tag $table = preg_replace ("' <[\/\!] *? [^<>]*?> ' si ', ' ", $table);//Remove the whitespace character $table = Preg_replace (" ' ([\ r \ n]) [\s]+ ' "," ", $table); $table = Str_replace (" "," ", $table); $table = Str_replace (" "," "", $table); $table = Explode (", {tr}", $table); Array_pop ($table); return $table;}

Convert each row of an HTML table to an array, collecting tabular data

function Gettdarray ($table) {$table = Preg_replace ("' <table[^>]*?> ' si '," ", $table); $table = Preg_replace (" ' <tr[^>]*?> ' Si ', "", $table); $table = Preg_replace ("' <td[^>]*?> ' si '," ", $table); $table = Str_replace ("</tr>", "{tr}", $table), $table = Str_replace ("</td>", "{td}", $table);//Remove HTML Tag $table = preg_replace ("' <[\/\!] *? [^<>]*?> ' si ', ' ", $table);//Remove the whitespace character $table = Preg_replace (" ' ([\ r \ n]) [\s]+ ' "," ", $table); $table = Str_replace (" "," ", $table); $table = Str_replace (" "," "", $table) $table = Explode (' {tr} ', $table); Array_pop ($table); foreach ($table as $key = $tr) {$td = explode (' {TD} ', $TR); Array_pop ($TD); $TD _array[] = $TD;} return $TD _array;}

Returns all the words in a string $distinct =true remove Duplicates

function splitenstr ($str, $distinct =true) {Preg_match_all ('/([a-za-z]+)/', $ STR, $match), if ($distinct = = true) {$match [1] = Array_unique ($match [1]);} Sort ($match [1]); return $match [1];}