这篇文章主要讲了归纳总结php中常用函数，有一定的参考价值，感兴趣的朋友可以看看！
 代码如下:
function get_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 $nowurl; }
把全角数字转为半角数字
代码如下:
function getalabnum($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 $fnum; }
去除html标记
代码如下:
function text2html($txt){ $txt = str_replace(" ","　",$txt); $txt = str_replace("<","<",$txt); $txt = str_replace(">",">",$txt); $txt = preg_replace("/[\r\n]{1,}/isu"," \r\n",$txt); return $txt; }
清除html标记
代码如下:
function clearhtml($str){ $str = str_replace('<','<',$str); $str = str_replace('>','>',$str); return $str; }
相对路径转化成绝对路径
代码如下:
function relative_to_absolute($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 $new_content; }
取得所有链接
代码如下:
function get_all_url($code){ preg_match_all('/
html表格的每行转为csv格式数组
代码如下:
function get_tr_array($table) { $table = preg_replace("'
将html表格的每行每列转为数组，采集表格数据
代码如下:
function get_td_array($table) { $table = preg_replace("'
返回字符串中的所有单词 $distinct=true 去除重复
代码如下:
function split_en_str($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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