how to trap special chracters and digits in php?

[pulchra]

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how to trap special chracters and digits in php?

i used ctype_alpha() para ma trap ang special char and digits pero if naa space ang last name like (de la cruz) iya apilon ug trap ang space so ang result ma tarp tanan special char & digit pero no space imong last name like (de la cruz)!

unsaon ni? naa bay laing function or way para ma trap?


salamat sa debug................. your answer will be a lifeline sa akong thesis!

[Tin_Tin]

gamit siguro ug regular expressions bay. . .

[MarkCuering]

if you can manage to read and write codes then study...

PHP: POSIX Regex - Manual
Regular Expressions PHP Tutorial

or you can post your sample code so others can help you.

[Dondon]

Bitaw maypa sample code.

Pero solution nimo REGEXP, preg_replace ra gyud, hehe.

[Tin_Tin]

or pwede pud imo i split ang each character sa string into an array of characters then per character imo manipulation/checking. . .

[pulchra]

if(trim($_POST['fname'])==''||!ctype_alpha(trim($_POST['fname']))){
$errorlist[]='First Name is Empty or Must be All Alpha Characters!';
}

123=error

!!@@=error

12ewew=error

wewew12=error

!@wew=error

wqwq!@@=error

john=NO ERROR

but the bug is JOHN JOHN / DE LA CRUZ = ERROR!

mao ni ang bugs mga master if mo input ko naay space iya e treat ang space as special character unsaon mani??

[tynum]

unfortunately bro.... ang trim() function kay only removes white spaces outside sa text... not inside...

example:

$var =" the fox ";
$var = trim($var);
echo $var;

outputs: "the fox"

so kung mag ctype_alpha() ka... " " white space is not part of the "C locale letters"... so mu error jud na xa...

so try this... i think mao na jud ni ang imong g huwat...


CODE:

$name = $_POST[fname];

$name = trim($name); // para xur na walay white space outside the word

$tempname = str_replace(" ", "", $name); // replacing white spaces with no space...

if( $name == "" || !ctype_alpha($tempname) )
{
$errorlist[]='First Name is Empty or Must be All Alpha Characters!';
}

[pulchra]

@tynum

salamat kaayo master mao nlang ni kuwang sa among thesis ang trappings na walay bug yes thnak you kaayo


ikaw ang daan patungo sa aming kinabukasan haha bitaw salamt kaayo

ug sa tanan salamats

[ingkiang]

wla ka ni try sa regular expression bro? may nice man cguro to...

[ChaosOrb]

try this one, this is a good read