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POHow to dynamically set array keys in php
 

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  1. POHow to dynamically set array keys in php
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    <p>I have some logic that is being used to sort data but depending on the user input the data is grouped differently. Right now I have five different functions that contain the same logic but different groupings. Is there a way to combine these functions and dynamically set a value that will group properly. Within the function these assignments are happening </p> <p>For example, sometimes I store the calculations simply by: </p> <pre><code>$calcs[$meter['UnitType']['name']] = ... </code></pre> <p>but other times need a more specific grouping: </p> <pre><code>$calcs[$meter['Resource']['name']][$meter['UnitType']['name']][date('Y-m',$start)] =... </code></pre> <p>As you can see sometimes it is stored in a multidiminesional array and other times not. I have been trying to use eval() but without success (not sure that is the correct approach). Storing the data in a temporary variable does not really save much because there are many nested loops and if statements so the array would have to be repeated in multiple places. </p> <p><strong>EDIT</strong></p> <p>I hope the following example explains my problem better. It is obviously a dumbed down version:</p> <pre><code>if(){ $calcs[$meter['UnitType']['name']] = $data; } else { while () { $calcs[$meter['UnitType']['name']] = $data; } } </code></pre> <p>Now the same logic can be used but for storing it in different keys:</p> <pre><code>if(){ $calcs[$meter['Resource']['name']][$meter['UnitType']['name']][date('Y-m',$start)] = $data; } else { while () { $calcs[$meter['Resource']['name']][$meter['UnitType']['name']][date('Y-m',$start)] = $data; } } </code></pre> <p>Is there a way to abstract out the keys in the $calc[] array so that I can have one function instead of having multiple functions with different array keys?</p>
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    1. COMight this be better managed using objects?
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    2. COI don't actually understand the problem. Are you trying to query these data structures in a uniform way?
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      1. USerisco
    3. COI made an edit to help explain. Hopefully it does help.
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