Access only the first row of a 2d array [duplicate]

Question

I'm running a RegEx to match all instances of the Twitter hashtag. It returns it just fine, but now I just want to loop through the first set and return my #hello, #world, #hello-world, not the second set.

Array ( [0] => Array ( [0] => #hello [1] => #world [2] => #hello-world ) [1] => Array ( [0] => hello [1] => world [2] => hello-world ) )

Gumbo · Accepted Answer · 2010-02-22 14:42:25Z

3

Specify $arr[0] as the array you want to iterate:

foreach ($arr[0] as $tag) { // … }

answered Feb 22, 2010 at 14:42

Gumbo

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soulmerge · Accepted Answer · 2010-02-22 14:42:41Z

2

do you mean foreach($array[0] as $string) {...?

answered Feb 22, 2010 at 14:42

soulmerge

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Thomas Ahle · Accepted Answer · 2010-02-22 14:45:12Z

You don't even need to loop through. You can just do

return $matches[0];

This will return

Array ( [0] => #hello [1] => #world [2] => #hello-world )

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