str_replace question

[jmark]

I saw this example in php.net

// Outputs: apearpearle pear
$letters = array('a', 'p');
$fruit = array('apple', 'pear');
$text = 'a p';
$output = str_replace($letters, $fruit, $text);
echo $output;

and I am bit puzzled why the output is the way it is instead of

apple pear

it looks like str_replace is replacing the p in apple to pear but why
does not replace the p in pear to pear and the a to apple and why is
the output not "apple pear"?

Thanks
John

[Jerry Stuckle]

jm***@fastermail.com wrote:

I saw this example in php.net

// Outputs: apearpearle pear
$letters = array('a', 'p');
$fruit = array('apple', 'pear');
$text = 'a p';
$output = str_replace($letters, $fruit, $text);
echo $output;

and I am bit puzzled why the output is the way it is instead of

apple pear

it looks like str_replace is replacing the p in apple to pear but why
does not replace the p in pear to pear and the a to apple and why is
the output not "apple pear"?

Thanks
John

John,

I haven't looked at the source code, but I would expect it does would be
effectively the same as:

$output = str_replace('a', 'apple', 'a p');
$output = str_replace('p', 'pear', '$output);

Which produces the same output.

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==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
js*******@attglobal.net
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[jmark]

On Aug 12, 3:37 pm, Jerry Stuckle <[e-mail]:

[e-mail] wrote:

I saw this example in php.net

// Outputs: apearpearle pear
$letters = array('a', 'p');
$fruit = array('apple', 'pear');
$text = 'a p';
$output = str_replace($letters, $fruit, $text);
echo $output;

and I am bit puzzled why the output is the way it is instead of

apple pear

it looks like str_replace is replacing the p in apple to pear but why
does not replace the p in pear to pear and the a to apple and why is
the output not "apple pear"?

Thanks
John

John,

I haven't looked at the source code, but I would expect it does would be
effectively the same as:

$output = str_replace('a', 'apple', 'a p');
$output = str_replace('p', 'pear', '$output);

Which produces the same output.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
[e-mail]
==================- Hide quoted text -

- Show quoted text -

Yes, that sounds reasonable as to how it is working.
I had thought that str_replace replaces all elements in the array at
the same time. I think this would have been a more intuitive approach

Thanks
John

[gosha bine]

On 12.08.2007 21:45 jm***@fastermail.com wrote:

I saw this example in php.net

// Outputs: apearpearle pear
$letters = array('a', 'p');
$fruit = array('apple', 'pear');
$text = 'a p';
$output = str_replace($letters, $fruit, $text);
echo $output;

and I am bit puzzled why the output is the way it is instead of

apple pear

it looks like str_replace is replacing the p in apple to pear but why
does not replace the p in pear to pear and the a to apple and why is
the output not "apple pear"?

what you probably want is strtr

$repl = array('a' ='apple', 'p' ='pear');
$text = 'a p';
echo strtr($text, $repl);

--
gosha bine

makrell ~ http://www.tagarga.com/blok/makrell
php done right ;) http://code.google.com/p/pihipi

[Toby A Inkster]

jmark wrote:

I had thought that str_replace replaces all elements in the array at
the same time. I think this would have been a more intuitive approach

That would be the most sensible thing to do, but PHP does not always do
the most sensible thing!

--
Toby A Inkster BSc (Hons) ARCS
[Geek of HTML/SQL/Perl/PHP/Python/Apache/Linux]
[OS: Linux 2.6.12-12mdksmp, up 53 days, 11:31.]

PHP Debugging with Style -OR- How I Learned to Stop Worrying and Love the Bug
http://tobyinkster.co.uk/blog/2007/0...ng-with-style/

[jmark]

On Aug 13, 2:44 am, gosha bine <[e-mail]:

On 12.08.2007 21:45 [e-mail] wrote:

I saw this example in php.net

// Outputs: apearpearle pear
$letters = array('a', 'p');
$fruit = array('apple', 'pear');
$text = 'a p';
$output = str_replace($letters, $fruit, $text);
echo $output;

and I am bit puzzled why the output is the way it is instead of

apple pear

it looks like str_replace is replacing the p in apple to pear but why
does not replace the p in pear to pear and the a to apple and why is
the output not "apple pear"?

what you probably want is strtr

$repl = array('a' ='apple', 'p' ='pear');
$text = 'a p';
echo strtr($text, $repl);

--
gosha bine

makrell ~http://www.tagarga.com/blok/makrell
php done right ;)http://code.google.com/p/pihipi- Hide quoted text -

- Show quoted text -

Thanks for showing me this function. I like it