If string starts with XXX

Hi

I am outputting two fields from my database... Brand & Title. I am outputting them as below...

<?php echo $row_rs_media_new['brand'] . " " . $row_rs_media_new['title']; ?>

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My problem is on occasions in my data the title also shows the brand name so the brand name shows twice. The brand name is at the start of the title. How can I check if the start of the title has the brand name and if it does remove it along with the space after it?
petewinterAsked:
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Ray PaseurConnect With a Mentor Commented:
See if this makes sense:
http://iconoun.com/demo/temp_petewinter.php

<?php // demo/temp_petewinter.php
error_reporting(E_ALL);

// MAKE IT EASIER TO READ THE OUTPUTS
echo '<pre>';

// SEE http://www.experts-exchange.com/Programming/Languages/Scripting/PHP/Q_28588117.html
// REF http://php.net/manual/en/function.strpos.php
/* <?php echo $row_rs_media_new['brand'] . " " . $row_rs_media_new['title']; ?> */

// TEST CASE
$row_rs_media_new['brand'] = 'Chevrolet';
$row_rs_media_new['title'] = 'Chevrolet Corvette';

// SHOW THE INSTANT CASE
echo 'BEFORE: ';
echo PHP_EOL;
echo $row_rs_media_new['brand'] . " " . $row_rs_media_new['title'];
echo PHP_EOL;

// SHOW HOW TO DETECT AND REMOVE THE REDUNDANT INFORMATION WITH PHP STRPOS() FUNCTION
echo 'AFTER USING STRPOS(): ';
echo PHP_EOL;
if (strpos($row_rs_media_new['title'], $row_rs_media_new['brand']) === 0)
{
    echo $row_rs_media_new['title'];
}

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Brian TaoConnect With a Mentor Senior Business Solutions ConsultantCommented:
This should work:
<?php echo $row_rs_media_new['brand'] . " " . str_replace($row_rs_media_new['brand'] . " " , "", $row_rs_media_new['title']); ?>

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petewinterAuthor Commented:
Thanks ray so I assume I need an else statement too. Like the below...

if (strpos($row_rs_media_new['title'], $row_rs_media_new['brand']) === 0)
{
    echo $row_rs_media_new['title'];
} else {
    echo $row_rs_media_new['brand'] . " " . $row_rs_media_new['title'];
}

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taoyipai - Thanks, Your solution works too and is shorter.

Ray / taoyipai - Does it make any difference which option I use. Do they both do the same thing and load just as quickly? Any impacts I need to know about?
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Ray PaseurConnect With a Mentor Commented:
The overall strategy would be to see if the 'brand' is contained at the beginning of the 'title.'  These are PHP string variables.  PHP strings are documented here:
http://php.net/manual/en/language.types.string.php
http://php.net/manual/en/language.operators.string.php
http://php.net/manual/en/ref.strings.php

Your choice will have no observable effect on performance.  However your choice will depend on the details of the problem you want to solve.  Here are a couple of test cases.  You can install this script on your server exactly as written here and run it to see the results.

<?php // demo/temp_petewinter.php
error_reporting(E_ALL);

// MAKE IT EASIER TO READ THE OUTPUTS
echo '<pre>';

// SEE http://www.experts-exchange.com/Programming/Languages/Scripting/PHP/Q_28588117.html
// REF http://php.net/manual/en/function.strpos.php
/* <?php echo $row_rs_media_new['brand'] . " " . $row_rs_media_new['title']; ?> */

// TEST CASE
$row_rs_media_new['brand'] = 'Chevrolet';
$row_rs_media_new['title'] = 'Chevrolet Corvette';

// SHOW THE INSTANT CASE
echo 'BEFORE: ';
echo PHP_EOL;
echo $row_rs_media_new['brand'] . " " . $row_rs_media_new['title'];
echo PHP_EOL;

// SHOW HOW TO DETECT AND REMOVE THE REDUNDANT INFORMATION WITH PHP STRPOS() FUNCTION
echo 'AFTER USING STRPOS(): ';
echo PHP_EOL;
if (strpos($row_rs_media_new['title'], $row_rs_media_new['brand']) === 0)
{
    echo $row_rs_media_new['title'];
}
?>


<?php

// TEST CASE
$row_rs_media_new['brand'] = 'Chevrolet';
$row_rs_media_new['title'] = 'Chevrolet Corvette';

echo PHP_EOL;
echo $row_rs_media_new['brand'] . " " . str_replace($row_rs_media_new['brand'] . " " , "", $row_rs_media_new['title']);

?>


<?php

// TEST CASE
$row_rs_media_new['brand'] = 'Corv';
$row_rs_media_new['title'] = 'Chevrolet Corvette';

echo PHP_EOL;
echo $row_rs_media_new['brand'] . " " . str_replace($row_rs_media_new['brand'] . " " , "", $row_rs_media_new['title']);

?>

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Since we do not have your database we can't really give you a tested-and-working response without some guessing about what should be in the test data set.  If you want to follow the line of thinking that we use in devising test cases, this article may help.
http://www.experts-exchange.com/Web_Development/Web_Languages-Standards/PHP/A_7830-A-Quick-Tour-of-Test-Driven-Development.html

If you're new to PHP and want some good learning resources, this article can help.
http://www.experts-exchange.com/Web_Development/Web_Languages-Standards/PHP/A_11769-And-by-the-way-I-am-new-to-PHP.html

And to your question about an else clause - yes you might want to have one of those.  It's worth experimenting with the code and your test data a little bit.  These kinds of things come together very quickly when you can produce some repeatable tests and run a few experiments.
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petewinterAuthor Commented:
Many thanks for the answer and info.
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Ray PaseurCommented:
Thanks for the points!  I love it when great minds come together to solve problems.  Happy New Year to all, ~Ray
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