这是手册上的例子,那位能给出简练的注释啊,尤其是正则后边的i的用法,本人就尤其不明白哎!$string = "April 15, 2003";
$pattern = "/(\w+) (\d+), (\d+)/i";
$replacement = "\${1}1,\$3";
print preg_replace($pattern, $replacement, $string);
$pattern = "/(\w+) (\d+), (\d+)/i";
$replacement = "\${1}1,\$3";
print preg_replace($pattern, $replacement, $string);
就是大写小写的全匹配
比如a 和 A可以匹配成功!