shakeit Posted January 29, 2008 Share Posted January 29, 2008 Hello everybody... You've helped me out a couple of times and I am still comming back :-) I need some help on a ereg issue, where I want to make a function where ONLY digits are possible when writing something in a field... i.e. only 0,1,2,3,4,5,6,7,8,9,10,..... However, I thought the function below did that, but only to a certain point... if I write only letters then I will get false, which is ok.. but if I write digits first and then letters, 55aabb, then I get true... Do you see my problem? I only want it to allow digits, nothing else: public function validatePhone($validate) { $goodChars = "^[0-9]"; if( ereg("$goodChars",$validate) ) { // if there are less than 8 digits, then its not correct. if( strlen($validate) < 8 ) { return false; } else { return true; } } else { return false; } } PS! I also have the same problem when I only want to allow letters in another function .. So please help me, AGAIN :-) Thanx in advance Quote Link to comment Share on other sites More sharing options...
effigy Posted January 29, 2008 Share Posted January 29, 2008 The expression ^[0-9] must match at least one digit at the beginning of the string to be valid. To extend this to the entire string use ^[0-9]+$. Moreover, see ctype_digit. Quote Link to comment Share on other sites More sharing options...
shakeit Posted January 30, 2008 Author Share Posted January 30, 2008 Thanx a lot :-) Ut worked ... Quote Link to comment Share on other sites More sharing options...
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