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POarray combine three or more arrays with php
 

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    <p>ok, assuming I have 5 arrays, all just indexed arrays, and I would like to combine them, this is the best way I can figure, is there a better way to handle this?</p> <pre><code>function mymap_arrays(){ $args=func_get_args(); $key=array_shift($args); return array_combine($key,$args); } $keys=array('u1','u2','u3'); $names=array('Bob','Fred','Joe'); $emails=array('bob@mail.com','fred@mail.com','joe@mail.com'); $ids=array(1,2,3); $u_keys=array_fill(0,count($names),array('name','email','id')); $users=array_combine($keys,array_map('mymap_arrays',$u_keys,$names,$emails,$ids)); </code></pre> <p>this returns:</p> <pre><code>Array ( [u1] =&gt; Array ( [name] =&gt; Bob [email] =&gt; bob@mail.com [id] =&gt; 1 ) [u2] =&gt; Array ( [name] =&gt; Fred [email] =&gt; fred@mail.com [id] =&gt; 2 ) [u3] =&gt; Array ( [name] =&gt; Joe [email] =&gt; joe@mail.com [id] =&gt; 3 ) ) </code></pre> <p>EDIT: After lots of benchmarking I wend with a version of Glass Robots answer to handle a variable number of arrays, it's slower than his obviously, but faster than my original:</p> <pre><code>function test_my_new(){ $args=func_get_args(); $keys=array_shift($args); $vkeys=array_shift($args); $results=array(); foreach($args as $key=&gt;$array){ $vkey=array_shift($vkeys); foreach($array as $akey=&gt;$val){ $result[$keys[$akey]][$vkey]=$val; } } return $result; } $keys=array('u1','u2','u3'); $names=array('Bob','Fred','Joe'); $emails=array('bob@mail.com','fred@mail.com','joe@mail.com'); $ids=array(1,2,3); $vkeys=array('name','email','id'); test_my_new($keys,$vkeys,$names,$emails,$ids); </code></pre>
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    1. COIt works ;) What should be better?
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    2. COI'm always surprised at how little I know about php;) when I'm doing a lot of processing with a specific function I always worried that I'm "taking the long way around"... I know this isn't that long, but it's going to be used a lot in the system I'm developing:)
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