Better yet, use the right function :-)
This script
<?php
$a = "1234567890";
$b = $a.$a;
$c = $a."A";
echo "$a ";
if (!is_numeric($a))
echo "NOT ";
echo "numeric<br>";
echo "$b ";
if (!is_numeric($b))
echo "NOT ";
echo "numeric<br>";
echo "$c ";
if (!is_numeric($c))
echo "NOT ";
echo "numeric<br>";
?>
should provide this output
1234567890 numeric
12345678901234567890 numeric
1234567890A NOT numeric
Luis
user@xxxxxxxxxxxxxx wrote:
Hi,
Have you tried regular expressions ? try them, they might do the trick
Rui Francisco
Rafael Soares wrote:
Hello people!!!
I would like to check if a string contains only numbers, I really can’t
realize how to do it.
I tried is_int(), but it don’t work because the variable is a string
(I used
gettype() to check it) and is_int() returns NULL…
It is to validate some data in a form. The variable I’m trying to
test is
the result of this script:
$data = $_POST[‘data’]; // something like 123.456.789
$dataParts = explode($data);
//these are the variable I have to check:
$dataP1 = $dataParts[0];
$dataP2 = $dataParts[1];
$dataP3 = $dataParts[3];
gettype($dataP1), gettype($dataP2) and gettype($dataP3) return string
gettype($dataParts) returns array
Thanks in advance.
Rafael Soares - AgênciaM
Fone: +55 11 4616-1394
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