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Number testing

isNumber($value, array $options = array()) checks if a given string is a number and returns TRUE or FALSE.

Example 570. Number testing

<?php
$locale 
= new Zend_Locale();
if (
Zend_Locale_Format::isNumber('13.445,36', array('locale' => 'de_AT'))) {
    print 
"Number";
} else {
    print 
"not a Number";
}

Zend Framework