Adding href for each array items

Question

im trying to create a tags from array items and the number of array items is always different,

$myarray = 'sports,politics,entertainment,celebs';
$siteurl = 'http://example.com/';
$tag = explode(',', $myarray);

this is what i do

echo '<p>tag : <a href="'.$siteurl.'?'.$tag[0].'" >'.$tag[0].'</a>, 



<a href="'.$siteurl.'?'.$tag[1].'" >'.$tag[1].'</a>, 
<a href="'.$siteurl.'?'.$tag[2].'" >'.$tag[2].'</a>, 
<a href="'.$siteurl.'?'.$tag[3].'" >'.$tag[3].'</a>,
<a href="'.$siteurl.'?'.$tag[4].'" >'.$tag[4].'</a></p>';

how can i echo this tags with a single call and get all array items no mather how much the items number?

Edit : typo for $vatag

you could try explode like this: $tag = explode('<a href="' . $myarray->siteurl . '?' . $myarray->tag[1]. '" >' . $myarray->vatag[1] . '</a>', $myarray); — Marc M.
– Marc M., Commented Oct 16, 2018 at 20:07

Julian Koster · Accepted Answer · 2018-10-16 20:06:31Z

5

You can use a foreach loop to accomplish this, as follows:

$myarray = 'sports,politics,entertainment,celebs';
$siteurl = 'http://example.com/';
$tag = explode(',', $myarray);

foreach($tag as &$value) {
    echo '<a href="'.$siteurl.'?'.$value.'" >'.$value.'</a>';
}

The result:

<a href="http://example.com/?sports" >sports</a><a href="http://example.com/?politics" >politics</a><a href="http://example.com/?entertainment" >entertainment</a><a href="http://example.com/?celebs" >celebs</a>

answered Oct 16, 2018 at 20:06

Julian Koster

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3 Comments

user10226920 Over a year ago

just an observation, no need to pass by reference in the loop

Martha I Over a year ago

@ArtisticPhoenix sorry its a typo

Christos Lytras Over a year ago

@ArtisticPhoenix I don't see a second array. It was a typo and the question is now corrected by the user I think.

ArtisticPhoenix · Accepted Answer · 2018-10-16 20:24:48Z

1

Then you can do them like this:

$len = count($tag);
for($i=0;$i<$len;$i++){
   echo '<a href="'.$siteurl.'?'.$tag[$i].'" >'.$tag[$i].'</a>';
}

So the full code

$myarray = 'sports,politics,entertainment,celebs';
$siteurl = 'http://example.com/';
$tag = explode(',', $myarray);

$len = count($tag);
for($i=0;$i<$len;$i++){
   echo '<a href="'.$siteurl.'?'.$tag[$i].'" >'.$tag[$i].'</a>';
}

Another, slightly more advanced way is like this (which is what I typically do)

$myarray = 'sports,politics,entertainment,celebs';
$siteurl = 'http://example.com/';
$tag = explode(',', $myarray);

$html = array_map(function($item)use($siteurl){
    return '<a href="'.$siteurl.'?'.$item.'" >'.$item.'</a>';
}, $tag);

echo implode("\n",$html);

That way in the source code for the page each link is on a new line, which makes it a bit easier to read the source. You can implode with "", for no line return too.

Cheers!

edited Oct 16, 2018 at 20:24

answered Oct 16, 2018 at 20:07

ArtisticPhoenix

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2 Comments

ArtisticPhoenix Over a year ago

I am not sure I know what you mean?. I do post some long answers though.... If that is what you mean, sorry, I just try to explain things as best I can. At the moment my wrists really hurt, so .... I been slammed updating mysql_ and other pre 7 stuff, I remember when it changed from 4 to 5, all those constructors and other things...

Progrock Over a year ago

Sorry, should have been more explicit. meant to say you'd dropped the original paragraphs and commas from the html output. Shame there isn't something like python 2 to 3! Poor you.

Luke Stevenson · Accepted Answer · 2018-10-16 21:15:25Z

1

What you want is a foreach loop, which will run through event element of the array, regardless of its length.

// Start with initialising an empty string
$str = '';

// Loop through every element of the $tag array,
//   using $value to hold the value of the current element in the loop
foreach ($tag as $value) {
  // Append the new link to the end of the string
  $str .= '<a href="' . $siteurl . '?' . $value . '" >' . $value . '</a>' . ', ';
}

// Echo the final array, after trimming off any spaces or commas
//   from the end
echo '<p>tag :' . rtrim($str, ', ') . '</p>';

edited Oct 16, 2018 at 21:15

Luke Stevenson

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answered Oct 16, 2018 at 20:17

Mohan Bade

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Comments

Christos Lytras · Accepted Answer · 2018-10-16 20:11:00Z

0

You don't have a $vatag array, or do you? You can't match something that you don't have or if you have it show us its' contents.

Simply use this code:

$siteurl = 'http://example.com/';
$tags = explode(',', 'sports,politics,entertainment,celebs');
echo '<p>Tags: ';
foreach($tags as $tag) {
    echo "<a href=\"{$siteurl}?{$tag}\">{$tag}&nbsp;</a>";
}
echo '</p>';

answered Oct 16, 2018 at 20:11

Christos Lytras

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