Preg匹配所有字符

Question

how to preg match all characters letters, numbers, special characters fe: ²,▲,ƒ ² ‰ © £ ± ß ° 1/2 ¿ « » ™...etc...???

and others special characters???

Answer 1

The regex syntax for any character except line breaks (\\r or \\n) is . , thus if you wanted to match one or more of any character, your regex would simply be .+ reference . However, some regex flavours do permit you to specify a flag which will allow the . to include line break characters.

As noted by Damien, what is the point of using preg_match?

Answer 2

In RegEx, the dot sign (.) will match any character, so

preg_match('/hel.o/', $str);

Will match hello , helpo , hel o , hel%o etc.

Answer 3

[\\w\\W] or [\\s\\S] matches all characters, including line breaks.

But these expressions are much slower then . , so be careful when working with big strings.

Answer 4

点（ . ）代表任何字符。

Answer 5

you may need to append /u in the pattern to tell preg_match to use utf8 strings, check manual for /u option and just paste the simple in the php code.

just remember to save the .php in utf8 mode or do some decodes manually.