Array peek

By sean on May 27, 2011

string array_peek( array $a, string $k )
This function returns a string of the next key in sequential order of $a, delimited by $k. Useful when iterating through an array. and needing to "peek ahead" of a key.

Parameters:
$a - The array (haystack)
$k - the key prior to expected result (needle)

Example:

<?php
$a = array('x' => 1, 'i' => 2, 'g' => 3, 'k' => 4, 'l' => 5);
echo array_peek($a, 'x');
?>

The above example will output:

<?php
function array_peek($a, $k) {
  foreach($a as $x => $v) {
    if (isset($h)) return $x;
    if ($x == $k) $h = 1;
  }
}
?>

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Comments

Korvin - Oct 03, 2011

function array_peek($a,$k) {
    $a=array_keys($a);
    return (array_search($k,$a)!=count($a)-1?$a[array_search($k,$a)+1]:false);
}

That's how I'd do it =]

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sean - May 30, 2011

lol yup, how ya been m8?

and thanx :)

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F*U*R*B*Y* - May 29, 2011

Geez, Sean, your still around???

Nice, Simple and Easy. Great job :)

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