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POPHP Multidimensional Array Sum/Erase Problem
 

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    <p>I have an array that looks like the following:</p> <p>The format:</p> <pre><code>[Person#] =&gt; Array ( [Bank#] =&gt; Balance . . [Bank#] =&gt; Balance ) </code></pre> <p>The Array:</p> <pre><code>[1] =&gt; Array ( [0] =&gt; 707 //Person #1 has 707 balance in Bank #0 [1] =&gt; 472 //Person #1 has 472 balance in Bank #1 ) [2] =&gt; Array ( [0] =&gt; 2614 [3] =&gt; 140 [1] =&gt; 2802 [4] =&gt; 245 [2] =&gt; 0 //Person #2 has 0 balance in Bank #2 ) [3] =&gt; Array ( [2] =&gt; 0 [3] =&gt; 0 [0] =&gt; 1710 [4] =&gt; 0 [1] =&gt; 575 ) [4] =&gt; Array ( [1] =&gt; 1105 [0] =&gt; 1010 [4] =&gt; 0 [3] =&gt; 120 [2] =&gt; 0 ) [5] =&gt; Array ( [1] =&gt; 238 [4] =&gt; 0 [0] =&gt; 0 ) [6] =&gt; Array ( [0] =&gt; 850 [1] =&gt; 0 ) [7] =&gt; Array ( [4] =&gt; 500 [0] =&gt; 3397 [1] =&gt; 2837 ) </code></pre> <p>The number to the left of the word "Array" represents a person. The first single digit number represents a bank. The second number represents a balance in the bank.</p> <p>I'm printing these numbers out in a table and, as you'll see in this example, Bank #2 has a zero balance for all people who have an account with Bank #2. I need a way to remove Bank #2 from the array -- and/or recreate the array without Bank #2. Of course, it won't always be Bank #2 that needs to be removed so it has to be a solution that finds any Banks with a total balance of zero (across all people) and removes it.</p> <p>Alternatively, I am fine with removing all zero balances from the array before going to print out the table.</p> <p>I'm not sure which is easier as I haven't been able to find a simple way to do either one.</p>
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