If($you Can Help Me == Yes){come On In!!!} Else {look Away Now}

ollmorris

Basically I have a text field. I want to be able to produce an error, IF the textfield contains a word, for example ASP.

I know how to do IF ELSE statements I just don't know how I would do a CONTAIN one!

Thanks

hand

<?php
$text = "The 7th sample of the CHM edition is out now. This adds many great new features ...";
$pattern = "CHM";
if (ereg($pattern,$text)) {
	print "Pattern <i><b>$pattern</b></i> found<br>in text: <i>$text</i>";
} else {
	print "No pattern <i><b>$pattern</b></i> found<br>in text: <i>$text</i>";
} 
print "<hr>";
if (eregi($pattern,$text)) { // case insensitive
	print "Pattern <i><b>$pattern</b></i> found<br>in text: <i>$text</i>";
} else {
	print "No pattern <i><b>$pattern</b></i> found<br>in text: <i>$text</i>";
} 
print "<hr>";
if (strpos($text,$pattern)) { // case insensitive
	print "Pattern <i><b>$pattern</b></i> found<br>in text: <i>$text</i>";
} else {
	print "No pattern <i><b>$pattern</b></i> found<br>in text: <i>$text</i>";
} 
?>

jerdo

You could also try:
if (preg_match("/What you are looking for/",$text_field))
{
do this
}

Weedpacket

Or faster (and, like the others, I'm assuming you want the containment to be case-sensitive):

if(strpos($text,$pattern)!==false) // 0==false but 0!==false
{ // $pattern is contained in $text
}

If you want case-insentive matching, I'd use preg_match

if(preg_match("/$pattern/i", $text))
{ // $pattern is contained in $text
}

And if you don't want e.g., CHM to be found in the string "batchmode":

if(preg_match("/\b$pattern\b/i", $text)) // matching word boundaries
{ // $pattern is contained in $text
}

ollmorris

I have some code with a banned word OLL:

$banned = "oll";if($submit){if (!eregi($banned,$text)) {echo "FAILED!!";}

this works, however if i submit the word POLL it gives an error. because it contains the characters O L L. How can this be avoided

Weedpacket

Originally posted by ollmorris
I have some code with a banned word OLL ... if i submit the word POLL it gives an error. because it contains the characters O L L. How can this be avoided

See the post immediately preceding yours.

ollmorris

Thanks it works great.

How can I have multiple values for $pattern. I have tried array's but they don't work. What can I do??

Thanks

Weedpacket

See the section in the manual on Pattern Syntax.

/\b(foo|bar|baz|wibble)\b/i