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  1. PO
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    <p>Think this will make you happy :-)</p> <pre><code> $data = array( array('id' =&gt; 1, 'distance' =&gt; rand(1,100000)), array('id' =&gt; 2, 'distance' =&gt; rand(1,100000)), array('id' =&gt; 3, 'distance' =&gt; rand(1,100000)), array('id' =&gt; 4, 'distance' =&gt; rand(1,100000)), array('id' =&gt; 5, 'distance' =&gt; rand(1,100000)), array('id' =&gt; 6, 'distance' =&gt; rand(1,100000)), array('id' =&gt; 7, 'distance' =&gt; rand(1,100000)), array('id' =&gt; 8, 'distance' =&gt; rand(1,100000)), ); echo "--raw data--\n"; var_dump($data); function distanceSorter($a, $b) { return $a['distance'] - $b['distance']; } usort($data, 'distanceSorter'); echo "--sorted data--\n"; var_dump($data); echo "--grab first result ( lowest )--\n"; var_dump($data[0]); GIVES --raw data-- array(8) { [0]=&gt; array(2) { ["id"]=&gt; int(1) ["distance"]=&gt; int(27573) } [1]=&gt; array(2) { ["id"]=&gt; int(2) ["distance"]=&gt; int(93357) } [2]=&gt; array(2) { ["id"]=&gt; int(3) ["distance"]=&gt; int(84515) } [3]=&gt; array(2) { ["id"]=&gt; int(4) ["distance"]=&gt; int(13666) } [4]=&gt; array(2) { ["id"]=&gt; int(5) ["distance"]=&gt; int(11810) } [5]=&gt; array(2) { ["id"]=&gt; int(6) ["distance"]=&gt; int(37548) } [6]=&gt; array(2) { ["id"]=&gt; int(7) ["distance"]=&gt; int(10705) } [7]=&gt; array(2) { ["id"]=&gt; int(8) ["distance"]=&gt; int(73548) } } --sorted data-- array(8) { [0]=&gt; array(2) { ["id"]=&gt; int(7) ["distance"]=&gt; int(10705) } [1]=&gt; array(2) { ["id"]=&gt; int(5) ["distance"]=&gt; int(11810) } [2]=&gt; array(2) { ["id"]=&gt; int(4) ["distance"]=&gt; int(13666) } [3]=&gt; array(2) { ["id"]=&gt; int(1) ["distance"]=&gt; int(27573) } [4]=&gt; array(2) { ["id"]=&gt; int(6) ["distance"]=&gt; int(37548) } [5]=&gt; array(2) { ["id"]=&gt; int(8) ["distance"]=&gt; int(73548) } [6]=&gt; array(2) { ["id"]=&gt; int(3) ["distance"]=&gt; int(84515) } [7]=&gt; array(2) { ["id"]=&gt; int(2) ["distance"]=&gt; int(93357) } } --grab first result ( lowest )-- array(2) { ["id"]=&gt; int(7) ["distance"]=&gt; int(10705) } </code></pre> <p>Short version</p> <pre><code>function distanceSorter($a, $b) { return $a['distance'] - $b['distance']; } usort($data, 'distanceSorter'); // if you really just want the lowest value $lowestDistance = array_shift(usort($data, 'distanceSorter'); </code></pre>
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    1. POFind lowest value in nested array
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