preg_match a string with repeated data in it

For example i have next string :

2556974513|0123254852|1025635214|1236521025|0124576832

in the string must be 10 digits then | and this formula may be repeated n times, how to match it?

maybe there is an easiest way to do that, than this :

preg_match('/开发者_StackOverflow社区^[\d]{10}|[\d]{10}| ... [\d]{10}$/', $string);

Thanks.

You will want something like this:

^(?:\d{10}\|)+\d{10}$

The \d{10} at the end is there since there is no | character at the end. The + will match one or more of the preceding pattern. If it is valid to match only one group of 10 digits then replace the + with * which will match zero or more times.

Note that the | character needs to be escaped, because it is used as an OR operator in regex.

This means "one or more of (10 digits then pipe)":

(\d{10}\|)+

Edit: It's not clear from your question if the tailing pipe will be there or not. If not, then:

(\d{10}\|)*(\d{10})

Also, if you need to extract the values anyway, you may as well just do:

foreach (explode('|', $string) as $value) {
    if (preg_match('/^\d{10}$/', $value)) {
        ...
    }
}