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HomeBackend DevelopmentPHP Tutorial 求解 关于替换和smarty的几个小问题

求解 关于替换和smarty的几个问题
1 关于替换
for ($i=0;$i $res1 = $res[$i];
$res1['content'] = preg_replace("/($selkey)/is","\\0",$res1['content']);
$res1['content'] = stristr($res1['content'],$selkey);
$res2[] = $res1;
/*echo "

";<br>	print_r($res1);<br>	echo "
";
exit();*/

问题:这段函数显示的内容正常的,是$selkey从content中第一次出现到最后的内容,但是为什么第一个$selkey没有被preg_replace的样式修饰? 而当我把preg_replace函数和stristr函数位置互换之后,结果又正确了?

2 关于smarty中的truncate函数
用truncate处理上面的代码出来的结果,被preg_replace修饰的所有样式都没了,我试了试加了个超链接,结果也不行,去掉这个函数后,又正常了,这是怎么回事?(因为smarty的truncate对中文支持不好,我使用的是从网上下载的修改过的truncate,会不会是这个原因?如果是又该怎么解决?)

------解决方案--------------------
str_ireplace() 就能满足你的要求
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