I want to run a for loop through an array and create anchor elements for each element in the array, where the key is the text part and the value is the URL.
How can I do this please?
Thank you.
2
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1de.php.net/manual/en/control-structures.foreach.phpGordon– Gordon04/21/2011 14:39:34Commented Apr 21, 2011 at 14:39
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2As for a "for" and not "foreach", you could probably walk the array with next() and grab the key with key()pastapockets– pastapockets04/21/2011 14:41:37Commented Apr 21, 2011 at 14:41
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4 Answers
This should do it
foreach($yourArray as $key => $value) {
//do something with your $key and $value;
echo '<a href="' . $value . '">' . $key . '</a>';
}
Edit: As per Capsule's comment - changed to single quotes.
answered Apr 21, 2011 at 14:37
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1It's another 13 minutes until I can set it as the correct answer, but I will.Francisc– Francisc04/21/2011 14:38:27Commented Apr 21, 2011 at 14:38
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2If you want to edit the value in the loop, change
$valueto&$value. Then, any changes you make to$valuein the loop will affect the original array. For more information, see PHP's page on references: php.net/manual/en/language.references.phpZach Rattner– Zach Rattner04/21/2011 14:39:45Commented Apr 21, 2011 at 14:39 -
1-1 for using single quotes in HTML code. Would break validation with some doctypes (like XHTML)Capsule– Capsule04/21/2011 14:43:11Commented Apr 21, 2011 at 14:43
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@Capsule - I'll be honest I didn't even know that was the case. Coming from ASP.NET background where you simply assume the page won't validate, so I never bothered to check things like that. I ended up using the above syntax out of sheer convenience in PHPMarek Karbarz– Marek Karbarz04/21/2011 14:45:20Commented Apr 21, 2011 at 14:45
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@Marek btw PHP is faster when using single quotes because it doesn't try to interpret any variables or special chars inside in the string. So you should definitely use that ;-) I would also concatenate
. "\n"for readability purposes when viewing HTML source code, even if I definitely don't recommend using echo in the middle of a PHP script.Capsule– Capsule04/21/2011 14:49:28Commented Apr 21, 2011 at 14:49
For some specific purposes you may want to know the current key of your array without going on a loop. In this case you could do the following:
reset($array);
echo key($array) . ' = ' . current($array);
The above example will show the Key and the Value of the first record of your Array.
The following functions are not very well known but can be pretty useful in very specific cases:
key($array); //Returns current key
reset($array); //Moves array pointer to first record
current($array); //Returns current value
next($array); //Moves array pointer to next record and returns its value
prev($array); //Moves array pointer to previous record and returns its value
end($array); //Moves array pointer to last record and returns its value
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I think this is the way SPL does it. Thanks.Francisc– Francisc05/22/2012 19:10:50Commented May 22, 2012 at 19:10
Like this:
$array = array(
'Google' => 'http://google.com',
'Facebook' => 'http://facebook.com'
);
foreach($array as $title => $url){
echo '<a href="' . $url . '">' . $title . '</a>';
}
answered Apr 21, 2011 at 14:38
In a template context, it would be:
<?php foreach($array as $text => $url): ?>
<a href="<?php echo $url; ?>"><?php echo $text; ?></a>
<?php endforeach; ?>
You shouldn't write your HTML code inside your PHP code, hence avoid echoing a bunch of HTML.
This is not filtering anything, I hope your array is clean ;-)
