php 用正则处理 字符窜的截取

Question

比如有下面一个例子：$string="{dede:pagestyle maxwidth='600' pagepicnum='12' ddmaxwidth='200' row='3' col='4' value='2'/}
{dede:img ddimg=' /uploads/allimg/120804/488-120P40U014.jpg ' text='鸟瞰图' width='709' height='749'} /uploads/allimg/120804/488-120P40U014.jpg {/dede:img}
{dede:img ddimg='/uploads/allimg/120804/488-120P40U213.jpg' text='酒店鸟瞰图' width='567' height='399'} /uploads/allimg/120804/488-120P40U213.jpg {/dede:img}
{dede:img ddimg='/uploads/allimg/120804/488-120P40U228.jpg' text='商业沿街效果图' width='1476' height='629'} /uploads/allimg/120804/488-120P40U228.jpg {/dede:img}
{dede:img ddimg='/uploads/allimg/120804/488-120P40U238.jpg' text='效果图' width='567' height='450'} /uploads/allimg/120804/488-120P40U238.jpg {/dede:img}
{dede:img ddimg='/uploads/allimg/120804/488-120P40U243.jpg' text='沿街效果图' width='567' height='354'} /uploads/allimg/120804/488-120P40U243.jpg {/dede:img}";通过处理循环输出：ddimg,text两个属性输出结果： /uploads/allimg/120804/488-120P40U014.jpg  鸟瞰图           /uploads/allimg/120804/488-120P40U213.jpg  酒店鸟瞰图           /uploads/allimg/120804/488-120P40U228.jpg  商业沿街效果图           /uploads/allimg/120804/488-120P40U238.jpg  效果图
  
           /uploads/allimg/120804/488-120P40U243.jpg' 沿街效果图同时计算出图片的张数。。大家帮帮忙 谢谢

Answer 1

dede ???
这分明是 织梦 的模板片段
不都是你自己写的吗？

Answer 2

preg_match_all("/ddimg='.*?'/",$string,$out);
preg_match_all("/text='.*?'/",$string,$out1);
print_r($out);print_r($out1);

Answer 3

这个效果跟我要的效果不太一样，，我只要输出ddimg,text的值 形式和我一样的 谢谢了

Answer 4

preg_replace("/ddimg='([^\']*)'\s+text='([^\']*)'/e",'$arr["$1"]="$2"',$string);
print_r($arr);
Array
(
    [ /uploads/allimg/120804/488-120P40U014.jpg ] => 鸟瞰图
    [/uploads/allimg/120804/488-120P40U213.jpg] => 酒店鸟瞰图
    [/uploads/allimg/120804/488-120P40U228.jpg] => 商业沿街效果图
    [/uploads/allimg/120804/488-120P40U238.jpg] => 效果图
    [/uploads/allimg/120804/488-120P40U243.jpg] => 沿街效果图
)

Answer 5

计算数组的长度 然后用foreach($arr as $key=>$value)只要前4条数据

Answer 6

$ar=array_slice($arr,0,4);
print_r($ar);
echo count($ar);

Answer 7

$string="{dede:pagestyle maxwidth='600' pagepicnum='12' ddmaxwidth='200' row='3' col='4' value='2'/}
{dede:img ddimg=' /uploads/allimg/120804/488-120P40U014.jpg ' text='鸟瞰图' width='709' height='749'} /uploads/allimg/120804/488-120P40U014.jpg {/dede:img}
{dede:img ddimg='/uploads/allimg/120804/488-120P40U213.jpg' text='酒店鸟瞰图' width='567' height='399'} /uploads/allimg/120804/488-120P40U213.jpg {/dede:img}
{dede:img ddimg='/uploads/allimg/120804/488-120P40U228.jpg' text='商业沿街效果图' width='1476' height='629'} /uploads/allimg/120804/488-120P40U228.jpg {/dede:img}
{dede:img ddimg='/uploads/allimg/120804/488-120P40U238.jpg' text='效果图' width='567' height='450'} /uploads/allimg/120804/488-120P40U238.jpg {/dede:img}
{dede:img ddimg='/uploads/allimg/120804/488-120P40U243.jpg' text='沿街效果图' width='567' height='354'} /uploads/allimg/120804/488-120P40U243.jpg {/dede:img}";我只想截取红色部分 

Answer 8

$string="{dede:pagestyle maxwidth='600' pagepicnum='12' ddmaxwidth='200' row='3' col='4' value='2'/}
{dede:img ddimg=' /uploads/allimg/120804/488-120P40U014.jpg ' text='鸟瞰图' width='709' height='749'} /uploads/allimg/120804/488-120P40U014.jpg {/dede:img}
{dede:img ddimg='/uploads/allimg/120804/488-120P40U213.jpg' text='酒店鸟瞰图' width='567' height='399'} /uploads/allimg/120804/488-120P40U213.jpg {/dede:img}
{dede:img ddimg='/uploads/allimg/120804/488-120P40U228.jpg' text='商业沿街效果图' width='1476' height='629'} /uploads/allimg/120804/488-120P40U228.jpg {/dede:img}
{dede:img ddimg='/uploads/allimg/120804/488-120P40U238.jpg' text='效果图' width='567' height='450'} /uploads/allimg/120804/488-120P40U238.jpg {/dede:img}
{dede:img ddimg='/uploads/allimg/120804/488-120P40U243.jpg' text='沿街效果图' width='567' height='354'} /uploads/allimg/120804/488-120P40U243.jpg {/dede:img}";呵呵 刚刚表达错误 应该是 截取这个红色部分的