Need easy PHP help - Tech Support Forums

golfcart · September 9th, 2005, 08:17 PM

lets say I have a variable...

$sentance = "the computer is on";

...and I want to know if it contains the word "computer". How would I do that?

I want to do an if then statement based on wether or not the variable contains a certain word. Like this:

$sentance = "the computer is on";
$word = "computer";
if ($sentence contains $word) { //This is the line I need help with
header( "location: bad.php" );
} else {
header( "location: good.php" );
}

I know it's simple but I'm stumped

LetMeKnow · September 11th, 2005, 05:37 AM

// maybe you're looking for these...
// both are using the regular expression

/***
this one will load either bad.php or good.php when the $word is found within $sentance
***/
/********** somename.php **********/
<?php

$sentance = "the computer is on";
$word = "computer";

if( ereg( $word, $sentance ) && ereg( "computer", $sentance ) ){
print header( "location: bad.php" );
}
else{
print header( "location: good.php" );
}

?>
/********** end somename.php **********/

/***
this one will print either
1) $sentance contains $word.
2) $sentance does not contain $word!
***/
/********** some-other-name.php **********/
<html>
<head>
<title>Does $sentance contain $word/"computer"?</title>
</head>

<body>

<?php

$sentance = "the computer is on";
$word = "computer";

if( ereg( $word, $sentance ) && ereg( "computer", $sentance ) ){
print( "'$sentance' contains $word.\n" );
}
else{
print( "'$sentance' does not contain $word!\n" );
}

?>

</body>
</html>
/********** end some-other-name.php **********/

/*****
i hope the $sentence you typed in your post was a typo
that means $sentence was actually $sentance

if it wasn't, then you have to give it in a little bit details
*****/

krohnjw · September 11th, 2005, 07:01 AM

IMO strstr is a much easier function than reinventing the wheel.

if (strstr("Does computer exist", "computer")) -> strstr will return true and you will enter the conditional.

So, a much simpler way of writing that is:

Code:

if (strstr($sentance, $word) {
     header("Location: good.php");
     exit;
}
else {
     header("Location: bad.php");
     exit;
}

LetMeKnow · September 11th, 2005, 12:28 PM

well, yes i know that.

i wrote this -->>if( ereg( $word, $sentance ) && ereg( "computer", $sentance ) ){

just to show golfcart that he/she got two options...
either use the $word, or type in directly that "computer" - the word which is to be searched/identified from the $sentance... or $sentence ?...

but, here is the simple one from the above...

if( ereg( $word, $sentance ) {
header( "location: bad.php" );
}
else{
header( "location: good.php" );
}

and there it goes!

golfcart · September 21st, 2005, 06:51 PM

Sorry for the delay guys. I was able to do what I wanted with your examples. I really appreciate it