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POPHP elseif statement not executed even though initial if statement is false
 

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  1. POPHP elseif statement not executed even though initial if statement is false
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    <p>I am writing a recursive function to print out the differences between 2 multildimensional php arrays. The purpose of this code is to see the difference between jpeg headers to deteremine how adobe bridge cs3 is saving rating information within the jpg file.</p> <p>When I am single-stepping through the code using my eclipse - zend debugger ide, it appears that even though the initial if statement is false (ie neither values is an array), the subsequent elseif statements are never executed. The function is attached below.</p> <p>Note: Changes since original post based on comments<br> Added a default level= ''<br> Removed comments between the if{} elseif{} blocks<br> Removed an else; at the end of the block that had no function Encoded the &lt; and &gt; symbols so angle bracket would show in my code</p> <pre> function array_diff_multi($array1,$array2,$level=''){ $keys = array_keys($array1); foreach($keys as $key) { $value1 = $array1[$key]; if(array_key_exists($key,$array2) ){ $value2 = $array2[$key]; if (is_array($value1) && is_array($value2)){ // Check if they are both arrays, if so recursion is needed array_diff_multi($value1,$value2,$level . "[ " . $key . " ]"); } elseif(is_array($value1) != is_array($value2)){ // Recursion is not needed, check if comparing an array to another type print "&lt;br&gt;" . $level . $key ."=>" . $value1 . "as array, compared to ". $value2 ."&lt;br&gt;"; } elseif($value1 != $value2){ // the values don't match, print difference print "&lt;br&gt;" . $level . $key ."=>" . $value1 ." != " . $value2 ."&lt;br&gt;"; } } else{ print "&lt;br&gt;" . $level. $key . "does not exist in array2"; } } } </pre>
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    1. This table or related slice is empty.
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    1. USDarwinIcesurfer
    1. USDarwinIcesurfer
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
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    2. PO
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    1. This table or related slice is empty.
    1. COCan you give us the sample you're using for `$array1` and `$array2`
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      1. POPHP elseif statement not executed even though initial if statement is false
      1. USthetaiko
    2. COMaybe you misspoke - if both value1 and value2 are arrays the first if statement evaluates to true and the elseifs will be ignored... The first elseif should trigger if one value is an array and the other is not, right? Also, (I think) is_array will return true/false - so it's good practice to use "!==" instead of "!=".
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      1. POPHP elseif statement not executed even though initial if statement is false
      1. USMatt Brunmeier
    3. COWhat does get executed?
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      1. POPHP elseif statement not executed even though initial if statement is false
      1. USJoshua Pinter
 

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