Collection of commonly used collection functions in PHP collection programs_PHP tutorial

The most commonly used functions in PHP collection pages are to filter some special characters or collect and save images in the content. Now I will introduce to you some commonly used functions when writing PHP collection programs.

I have been paying attention to the PHP collection program in the past few days, and found that it is so convenient to use PHP to collect content. I will summarize the frequently used collection functions here for future use!

",'",',$table);
$table = str_replace("","{tr}",$table);
//Remove HTML tag
$table = preg_replace("'<[/!]*?[^<>]*?>'si","",$table);
//Remove whitespace characters
$table = preg_replace("'([rn])[s]+'","",$table);
$table = str_replace(" ","",$table);
$table = str_replace(" ","",$table);
$table = explode(",{tr}",$table);
array_pop($table);
return $table;
}

Convert each row and column of the HTML table into an array and collect table data
function getTdArray($table) {
$table = preg_replace("']*?>'si","",$table);
$table = preg_replace("']*?>'si","",$table);
$table = preg_replace("']*?>'si","",$table);
$table = str_replace("","{tr}",$table);
$table = str_replace("","{td}",$table);
//Remove HTML tag
$table = preg_replace("'<[/!]*?[^<>]*?>'si","",$table);
//Remove whitespace characters
$table = preg_replace("'([rn])[s]+'","",$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;
}

Return all words in the string $distinct=true to remove duplicates
function splitEnStr($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];
}

The code is as follows

Copy code

Get all link content and addresses function getAllURL($code){ preg_match_all('/"' ]+)["|']?s*[^>]*>([^>]+) /i',$code,$arr); return array('name'=>$arr[2],'url'=>$arr[1]); } Get all image addresses function getImgSrc($code){ $reg = "/]*src="(http://(.+)/(.+).(jpg|gif|bmp|bnp|png))"/isU"; preg_match_all($reg, $code, $img_array, PREG_PATTERN_ORDER); return $img_array[1]; } Current script URL function getSelfURL(){ if(!empty($_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); $txt = preg_replace("/[rn]{1,}/isU"," rn",$txt); return $txt; } Clear HTML tags function clearHtml($str){ $str = str_replace('<','<',$str); $str = str_replace('>','>',$str); return $str; } Convert relative path to absolute path function relative2Absolute($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 $new_content; } Get the content in the specified tag function getTagData($str, $start, $end){ if ( $start == '' || $end == '' ){ return; } $str = explode($start, $str); $str = explode($end, $str[1]); return $str[0]; } Convert each row of the HTML table to a CSV format array function getTrArray($table) { $table = preg_replace("']*?>'si",'"',$table); $table = str_replace("

http://www.bkjia.com/PHPjc/631256.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/631256.htmlTechArticleThe most commonly used method in the PHP collection page is to filter some special characters or collect and save the pictures in the content. Now let me introduce to you some commonly used functions when writing PHP collection programs...