[PHP]实用函数3
[PHP]实用函数3
发布时间:2016-12-29 来源:查字典编辑
摘要://获得当前的脚本网址复制代码代码如下:functionget_php_url(){if(!empty($_server["REQUEST_...

//获得当前的脚本网址

复制代码 代码如下:

functionget_php_url(){

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;

}

//把全角数字转为半角数字

复制代码 代码如下:

functionGetAlabNum($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;

}

//去除HTML标记

复制代码 代码如下:

functionText2Html($txt){

$txt=str_replace("","",$txt);

$txt=str_replace("<","<",$txt);

$txt=str_replace(">",">",$txt);

$txt=preg_replace("/[rn]{1,}/isU","

rn",$txt);

return$txt;

}

//清除HTML标记

复制代码 代码如下:

functionClearHtml($str){

$str=str_replace('<','<',$str);

$str=str_replace('>','>',$str);

return$str;

}

//相对路径转化成绝对路径

复制代码 代码如下:

functionrelative_to_absolute($content,$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;

}

//取得所有链接

复制代码 代码如下:

functionget_all_url($code){

preg_match_all('/<as+href=["|']?([^>"']+)["|']?s*[^>]*>([^>]+)</a>/i',$code,$arr);

returnarray('name'=>$arr[2],'url'=>$arr[1]);

}

//HTML表格的每行转为CSV格式数组

复制代码 代码如下:

functionget_tr_array($table){

$table=preg_replace("'<td[^>]*?>'si",'"',$table);

$table=str_replace("</td>",'",',$table);

$table=str_replace("</tr>","{tr}",$table);

functionget_tr_array($table){

$table=preg_replace("'<td[^>]*?>'si",'"',$table);

$table=str_replace("</td>",'",',$table);

$table=str_replace("</tr>","{tr}",$table);

//去掉HTML标记

$table=preg_replace("'<[/!]*?[^<>]*?>'si","",$table);

//去掉空白字符

$table=preg_replace("'([rn])[s]+'","",$table);

$table=str_replace("","",$table);

$table=str_replace("","",$table);

$table=explode(",{tr}",$table);

array_pop($table);

return$table;

}

//将HTML表格的每行每列转为数组,采集表格数据

复制代码 代码如下:

functionget_td_array($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);

//去掉HTML标记

$table=preg_replace("'<[/!]*?[^<>]*?>'si","",$table);

//去掉空白字符

$table=preg_replace("'([rn])[s]+'","",$table);

$table=str_replace("","",$table);

$table=str_replace("","",$table);

$table=explode('{tr}',$table);

array_pop($table);

foreach($tableas$key=>$tr){

$td=explode('{td}',$tr);

array_pop($td);

$td_array[]=$td;

}

return$td_array;

}

//返回字符串中的所有单词$distinct=true去除重复

复制代码 代码如下:

functionsplit_en_str($str,$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];

}

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