preg_match_all - 正则表达式

Question

我可以使用什么模式来获得整数值 - ＆gt; 1来自：

$digit = 'My messages (1 new)';
$pattern = '/^My messages ([\d]+) ([\w]+)/i';

preg_match_all($pattern, $digit, $match);

请更正我的代码。提前致谢

Answer 1

这应该有效：

$digit = 'My messages (1 new)';
$pattern = '/\d+/';

preg_match_all($pattern, $digit, $match);

Answer 2

你可以尝试

$digit = 'My messages (1 new)';
$pattern = '/\d+/';

preg_match_all($pattern, $digit, $match);

学习正则表达式的有用链接

• http://net.tutsplus.com/tutorials/other/8-regular-expressions-you-should-know/
• http://net.tutsplus.com/tutorials/php/advanced-regular-expression-tips-and-techniques/
• http://www.regular-expressions.info/

Answer 3

$pattern = "/^My messages \((\d+) (\w+)\)/i';