$content : 当前的文章
$order :全部匹配
function parseImgs($content,$order='all')
{
$pattern='/<img.*?src="(.*?)".*?>/is';
preg_match_all($pattern,$content,$match);
if(isset($match[1])&&!empty($match[1])){
if($order==='all'){
return [
'exists' => 'y',//图片是否存在
'url' => $match[1] //存在对应的URL
];//$match[1];
}
if(is_numeric($order)&&isset($match[1][$order])){
return [
'exists' => 'y',//图片是否存在
'url' => $match[1][$order] //存在对应的URL
];//return $match[1][$order];
}
}
return [
'exists' => 'n',//图片是否存在
'url' => [] //存在对应的URL
];
}
//去除重复的值
function array_unique_list($arr) {
$ar = array_map('serialize',$arr);
$ar = array_unique($ar);
return array_map('unserialize',$ar);
}
//13位时间戳
function Millisecond($time){
list($msec,$sec) = explode ( " ",microtime ());
$millisecond = intval($msec*1000) + $sec*1000;
return $millisecond;
}
function generateCode()
{
//生成只有大写字母和数字
$chars = '0123456789';//所有字符的集合
$len = 6;//码值的总长度
$chars_length = strlen($chars);//字符串长度
$code = '';//初始化码值
for($i=1; $i<=$len; ++$i){//循环生成4个随机下标
$rand_index = mt_rand(0,$chars_length-1);//得到0到长度-1之间的任意随机数
$code .= $chars[$rand_index];//索引下标的字符串访问形式,拼凑码值
}
return $code;
}
//日期换算
function china_year($numYear){
$china_era = array('0'=>'庚','1'=>'辛','2'=>'壬','3'=>'癸','4'=>'甲','5'=>'乙','6'=>'丙','7'=>'丁','8'=>'戊','9'=>'己');
$china_branch = array('0'=>'申','1'=>'酉','2'=>'戌','3'=>'亥','4'=>'子','5'=>'丑','6'=>'寅','7'=>'卯','8'=>'辰','9'=>'巳','10'=>'午','11'=>'未');
$lastNum = mb_strcut($numYear,-1);
$remainder = $numYear%12;
$chinaYear = $china_era[$lastNum].$china_branch[$remainder].'年';
return $chinaYear;
}
//数组排序
function list_sort_by($list,$field,$sortby='asc') {
if(is_array($list)){
$refer = $resultSet = array();
foreach ($list as $i => $data)
$refer[$i] = &$data[$field];
switch ($sortby) {
case 'asc': // 正向排序
asort($refer);
break;
case 'desc':// 逆向排序
arsort($refer);
break;
case 'nat': // 自然排序
natcasesort($refer);
break;
}
foreach ( $refer as $key=> $val)
$resultSet[] = &$list[$key];
return $resultSet;
}
return false;
}
//对数组$arr按照$keys进行排序,$type排序方式(asc或desc),$num返回多少项
function arraySort($arr,$keys,$type,$num){
$keysvalue = $new_array = array();
foreach ($arr as $k=>$v){
$keysvalue[$k] = $v[$keys];
}
if($type == 'asc'){
asort($keysvalue);
}else{
arsort($keysvalue);
}
reset($keysvalue);
$i =0;
foreach ($keysvalue as $k=>$v){
$new_array[$i] = $arr[$k];
if ($i<$num){
$i++;
}else{
break;
}
}
return $new_array;
}
//获取文章内的图片地址
function getPicFromString($string)
{
$pic = '';
$string = stripslashes($string);
$string = preg_replace("/\<img src=\".*?image\/face\/(.+?).gif\".*?\>\s*/is",'',$string); //移除表情符
preg_match_all("/<[img|IMG].*?src\=[\"\'](.*?)[\"\']/i",$string,$mathes);
if(!empty($mathes[1]) || !empty($mathes[2])){
$pic_arrays = array();
$pic = $mathes[0];
foreach ($pic as $key){
preg_match_all("/src\=[\"\'](.*?)[\"\']/i",substr($key,5),$picture);
$pic_arrays[] = $picture[1][0];
}
$pic_array['exists']="y";
$pic_array['url']=$pic_arrays;
}else{
$pic_array['exists']="n";
}
return $pic_array;
}
//去空格
function delBlank($str)
{
$str = str_replace(' ',$str);
$str = preg_replace("/\s(?=\s)/",$str);
$str = preg_replace("/[\n\r\t]/",$str);
$str = preg_replace("/ /","",$str); //匹配html中的空格
return trim($str); //返回字符串
}
//去HTML标签
function delLabel($string)
{
$body = preg_replace("/<(.*?)>/",$string);
return $body;
}