preg_match_all("/ab(.*?)d/","abcabcbcd",$out); 结果是?

Question

preg_match_all("/ab(.*?)d/","abcabcbcd",$out); 结果是?
我想匹配出 cbc该怎么写呢?

Answer 1

preg_match("/cbc/","abcabcbcd",$out); 
echo $out[0];

Answer 2

LZ需求不够明确，如下也是可以匹配的
preg_match_all("/.*ab(.*)d/","abcabcbcd",$out);

Answer 3

preg_match_all("/ab(.*?)d/","abcabcbcd",$out); 结果是?
我想匹配出 cbc该怎么写呢?
就是说.在职能确定 要匹配的首2个字母是  ab 最后一个是d  这种情况下的要非贪婪 匹配就可以了.

Answer 4

preg_match_all("/.*ab(.*)d/","abcabcbcd",$out);
这个是最好的解决办法。

Answer 5

preg_match_all("/ab((?:(?!ab).)*)d/","aaabaaaabxxxdabcbcd",$out);
print_r($out);
/*
结果:Array
(
    [0] => Array
        (
            [0] => abxxxd
            [1] => abcbcd
        )    [1] => Array
        (
            [0] => xxx
            [1] => cbc
        ))*/