史上最悲催的事就是弄正则~~~

//替换ml
    $goods_desc = $v['goods_desc'];
    preg_match_all("/[0-9]mL/i",$goods_desc,$ar);
    //替换ml
    foreach($ar[0] as $v){
        $goods_desc =  preg_replace ("/(.*)([0-9]mL)(.*)/ei", "'\\1'.strtolower('\\2').'<br>\\3'",$goods_desc);
        
    
    }
    
    //替换mm
    unset($ar);
    preg_match_all("/[0-9]mpa/i",$goods_desc,$ar);    
    foreach($ar[0] as $v){
        $goods_desc =  preg_replace ("/(.*)([0-9]mpa)(.*)/ei", "'\\1'.strtolower('\\2').'<br>\\3'",$goods_desc);
        
    }
    
    
    //替换mm
    unset($ar);
    preg_match_all("/[0-9]mm/i",$goods_desc,$ar);    
    foreach($ar[0] as $v){
        $goods_desc =  preg_replace ("/(.*)([0-9]mm)(.*)/ei", "'\\1'.strtolower('\\2').'<br>\\3'",$goods_desc);
        
    }    //替换kg
    unset($ar);
    preg_match_all("/[0-9]kg/i",$goods_desc,$ar);    
    foreach($ar[0] as $v){
        $goods_desc =  preg_replace ("/(.*)([0-9]kg)(.*)/ei", "'\\1'.strtolower('\\2').'<br>\\3'",$goods_desc);
        
    }
    
    //替换kg
    unset($ar);
    preg_match_all("/[0-9]g/i",$goods_desc,$ar);    
    foreach($ar[0] as $v){
        $goods_desc =  preg_replace ("/(.*)([0-9]g)(.*)/ei", "'\\1'.strtolower('\\2').'<br>\\3'",$goods_desc);
        
    }
    
    
    
    
    //替换cm
    unset($ar);
    preg_match_all("/[0-9]cm/i",$goods_desc,$ar);    
    foreach($ar[0] as $v){
        $goods_desc =  preg_replace ("/(.*)([0-9]cm)(.*)/ei", "'\\1'.strtolower('\\2').'<br>\\3'",$goods_desc);
        
    }
    
    //替换rpm
    unset($ar);
    preg_match_all("/[0-9]rpm/i",$goods_desc,$ar);    
    foreach($ar[0] as $v){
        $goods_desc =  preg_replace ("/(.*)([0-9]rpm)(.*)/ei", "'\\1'.strtolower('\\2').'<br>\\3'",$goods_desc);
        
    }
    
    //替换°C
    unset($ar);
    preg_match_all("/[0-9]°C|&#176;C/i",$goods_desc,$ar);    
    foreach($ar[0] as $v){
        $goods_desc =  preg_replace ("/(.*)([0-9]°C|&#176;C)(.*)/ei", "'\\1\\2<br>\\3'",$goods_desc);
        
    }
    
    
    //替换W
    unset($ar);
    preg_match_all("/[0-9]W/i",$goods_desc,$ar);    
    foreach($ar[0] as $v){
        $goods_desc =  preg_replace ("/(.*)([0-9]W)(.*)/ei", "'\\1\\2<br>\\3'",$goods_desc);
        
    }
    
    
    
    //替换L
    unset($ar);
    preg_match_all("/[0-9]L/i",$goods_desc,$ar);    
    foreach($ar[0] as $v){
        $goods_desc =  preg_replace ("/(.*)([0-9]L)(.*)/ei", "'\\1\\2<br>\\3'",$goods_desc);
        
    }
    
    
    //替换V
    unset($ar);
    preg_match_all("/[0-9]V/i",$goods_desc,$ar);    
    foreach($ar[0] as $v){
        $goods_desc =  preg_replace ("/(.*)([0-9]V)(.*)/ei", "'\\1\\2<br>\\3'",$goods_desc);
        
    }
    
    
    
    
    
    //替换大写开头
    unset($ar);
    preg_match_all("/[a-z]+[A-Z]/",$goods_desc,$ar);
    
    foreach($ar[0] as $v){
        
        $goods_desc =  preg_replace ("/(.*)([a-z]+[A-Z])(.*)/e", "'\\1'.substr('\\2',0,1).'<br>'.substr('\\2',1,1).'\\3'",$goods_desc);
    
    }
    
    
    
    
    //替换大写开头
    unset($ar);
    preg_match_all("/[0-9]+[A-Z]/",$goods_desc,$ar);
    
    foreach($ar[0] as $v){
        
        $goods_desc =  preg_replace ("/(.*)([0-9]+[A-Z])(.*)/e", "'\\1\\2<br>\\3'",$goods_desc);
    
    }
    
    
    
    
    
    
    
    
        //替换大写开头
    unset($ar);
    preg_match_all("/\)[A-Z]/",$goods_desc,$ar);
    
    foreach($ar[0] as $v){
        
        $goods_desc =  preg_replace ("/(.*)(\)[A-Z])(.*)/e", "'\\1'.substr('\\2',0,1).'<br>'.substr('\\2',1,1).'\\3'",$goods_desc);
    
    }