Eliminating just one error isn't enough for software to work correctly. You need to eliminate all of them, preferably without introducing new ones. In your recent example I see a number of errors which you might have spotted if you had used use strict:

1. You prepare a statement to $CHECK_PHONE and then execute it on $CHECK_EMAIL with the phone number as parameter. Calling fetchrow_arrayref on a statement which hasn't been executed will not return an array reference.
2. Next you test for $E->[0] but $E has never been set.
3. In both error branches you set the variable $error_phone.

You should really try to provide a complete example, run it on your database and then post it, together with the result. We are still at a level where I just need to look at the code to spot several - new - problems.

---

---

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		&
	<		&lt;
	>		&gt;
	[		&#91;
	]		&#93;

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.