STRPOS not working? why?

[RyuMaster]

Hi! I have very simple comparing code.

The $str includes $compare, and should return "YES", but I get "NO". Why is it so?

Am I missing something?

 

<?php

$str = "According to the management guru Peter Drucker (1909–2005), the basic task of a .... Branches of management theory also exist relating to nonprofits and to";

$compare = "According to the management guru Peter";

if(strpos($str,$compare))

{

echo "YES";

}

else

{

echo "NO";

}

?>

 

Regards!

Konstantin.

[knsito]

because the function is returning 0

you should change the if to

if(strpos() !==  false){...}

 

See the return value section and first example here

http://php.net/manual/en/function.strpos.php

 

[JAY6390]

Yup since the match is right at the start (the matching starts at 0) and false equates loosely to 0 they create a false instead of a true. use

!== false

as suggested above or

=== true

 

[knsito]

Yup since the match is right at the start (the matching starts at 0) and false equates loosely to 0 they create a false instead of a true. use

!== false

as suggested above or

=== true

 

I dont think === true will work since the function returns the integer position.

[Alex]

Yup since the match is right at the start (the matching starts at 0) and false equates loosely to 0 they create a false instead of a true. use

!== false

as suggested above or

=== true

 

I dont think === true will work since the function returns the integer position.

Correct, === true will not work. Just use !== false or === false.

[severndigital]

you might want to use stristr() instead of strpos to compare, which is what it looks like you are doing

 

http://us2.php.net/manual/en/function.stristr.php

 

 

[MadTechie]

Correct, === true will not work.

true

 

Just use !== false or === false.

Huh!  Assume that's a typo AlexWD !

[Alex]

Typo? I don't think so. Maybe I didn't explain what I meant well enough.

 

I mean like this:

<?php
$str = 'Blah Blah Blah. Hello World';
if(strpos($str, 'Blah') !== false) // Use !== false to see if it's present
{
echo 'Found';
}

if(strpos($str, 'Not found') === false) // Use === false to see if it's not present
{
echo 'Not Found';
}

[MadTechie]

Ahh that makes more sense,

I thought you meant

if(strpos() ===  false){...}

or

if(strpos() !==  false){...}

of course the above is just silly so assumed, it was a typo.