求大神一个简略的正则去除

求大神一个简单的正则去除

    Array
        (
            [0] => ts3.mm.bing.net/th?id=H.4877189679415314&pid=1.7&w=140&h=153&c=7&rs=1" style="height:153px;"/>
            [1] => ts4.mm.bing.net/th?id=H.4541061266538791&pid=1.7&w=159&h=153&c=7&rs=1" style="height:153px;"/>
            [2] => ts3.mm.bing.net/th?id=H.5012914882808678&pid=1.7&w=124&h=153&c=7&rs=1" style="height:153px;"/>
            [3] => ts2.mm.bing.net/th?id=H.4755508963443465&pid=1.7&w=187&h=153&c=7&rs=1" style="height:153px;"/>
            [4] => ts1.mm.bing.net/th?id=H.5001765194041784&pid=1.7&w=144&h=146&c=7&rs=1" style="height:146px;"/>
)

求大神怎么去除这个数组&之前的所有数据
例如ts3.mm.bing.net/th?id=H.4877189679415314&pid=1.7&w=140&h=153&c=7&rs=1" style="height:153px;"/>
变成ts3.mm.bing.net/th?id=H.4877189679415314
[解决办法]
明明是“后”偏要说是前

$ar = array(
'ts3.mm.bing.net/th?id=H.4877189679415314&pid=1.7&w=140&h=153&c=7&rs=1" style="height:153px;"/>',
'ts4.mm.bing.net/th?id=H.4541061266538791&pid=1.7&w=159&h=153&c=7&rs=1" style="height:153px;"/>',
'ts3.mm.bing.net/th?id=H.5012914882808678&pid=1.7&w=124&h=153&c=7&rs=1" style="height:153px;"/>',
'ts2.mm.bing.net/th?id=H.4755508963443465&pid=1.7&w=187&h=153&c=7&rs=1" style="height:153px;"/>',
'ts1.mm.bing.net/th?id=H.5001765194041784&pid=1.7&w=144&h=146&c=7&rs=1" style="height:146px;"/>',
);
$p = new ArrayIterator($ar); 
$i = new RegexIterator($p, '/&.*$/', RegexIterator::REPLACE); 
$i->replacement = ''; 
        
 
print_r(iterator_to_array($i)); 

Array
(
    [0] => ts3.mm.bing.net/th?id=H.4877189679415314
    [1] => ts4.mm.bing.net/th?id=H.4541061266538791
    [2] => ts3.mm.bing.net/th?id=H.5012914882808678
    [3] => ts2.mm.bing.net/th?id=H.4755508963443465
    [4] => ts1.mm.bing.net/th?id=H.5001765194041784
)

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