正则解密字帖
xiaozi 2015-01-06 20:30:53
php中,`++$a` 和 `$a = $a + 1` 是一样的吗?
<?php $a = '1d9'; echo ++$a . PHP_EOL; // 1e0 $b = '1d9'; $b = $b + 1; echo $b . PHP_EOL; // 2
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