#51148 [Com]: preg_match doesn't work...le't post an example

[alessandro dot romani at vivanet dot it]

 ID:               51148
 Comment by:       alessandro dot romani at vivanet dot it
 Reported By:      fabriziodimeo at alice dot it
 Status:           Open
 Bug Type:         *Regular Expressions
 Operating System: windows and linux
 PHP Version:      5.3.1
 New Comment:

I tested the two functions (preg_match and ereg) and this is the
result:

<?php
function test($str)
{
if (preg_match("/[a-zA-Z0-9]+/",$str))
{
echo "it's ok<BR>";
}
else
{
echo "not ok<BR>";
}
}

function test2($str)
{
if (ereg("^[a-zA-Z0-9]+$",$str))
{
echo "it's ok<BR>";
}
else
{
echo "not ok<BR>";
}
}

echo "PREG_MATCH<BR><BR>";

test("iao");
test("$iao");
test("iao!");
test("123!");
test("123");

echo "<BR>";

echo "EREG<BR><BR>";

test2("iao");
test2("$iao");
test2("iao!");
test2("123!");
test2("123");

?>

The result is:

PREG_MATCH

not ok
not ok
not ok
not ok
not ok

EREG

it's ok
not ok
not ok
not ok
it's ok


Previous Comments:
------------------------------------------------------------------------

[2010-02-25 18:56:50] fabriziodimeo at alice dot it

Description:
------------
preg_match do not match correctly.

Reproduce code:
---------------
<?php
function anti_injection($stringa) {
$pattern="/[A-Za-z0-9]/";
if (preg_match($pattern, $stringa)) {
echo "ok"; } 
                 else {
                 
                 echo "hacking";
                      }
}


$str="c";
anti_injection($str);

$str="ciao!";
anti_injection($str);

?> 

Expected result:
----------------
ok
hacking

Actual result:
--------------
ok
ok


------------------------------------------------------------------------


-- 
Edit this bug report at http://bugs.php.net/?id=51148&edit=1