用preg_match检查一些单词

Question

I need to check some words with preg_match. If the words contain numbers and ., I want to echo "ok".

Lets say i want to ckeck this :

4814.84dszs  //ok
412.84.61.412  //ok
hello.4you //ok
welcome.user //not ok
481221222 // not ok

I have used this:

if (preg_match('/^[0-9][.]+$/', 'MY_WORD_HERE'))
{
echo 'ok';
}

But it doesn't give me the exactly result which I looking for.

Answer 1

Try this :

if (preg_match('/(\d+\.)|(\.\d+)/', '4814.84dszs'))
{
echo 'ok';
}

^ -> indicates at the begining of the string

$ -> End of the string.

So your pattern says from start to end(Matching for whole string)

If you remove this it will match anywhere in the string not whole string.