php - How can I loop over this multi dimensional array? -
so im trying loop on array of categories , sub-categories im having trouble foreach loop. once i've got array working im going create menu if hover on category, sub categories appear.
put way, im hopeless @ logic side of things :| array along loops i've tried:
$categories = array( 'arr' => array( 'cat'=>'sport', 'subcats'=> array( "surfing", "basketball", "nfl", "afl" ) ), 'arr' => array( 'cat'=>'automotive', 'subcats'=> array( "cars", "f1", "bikes", "etc" ) ), 'arr' => array( 'cat'=>'comedy', 'subcats'=> array( "stand up", "pranks", "...", "test" ) ) ); //loop1 foreach ($categories $key => $value) { if($key == "arr"){ foreach ($key $key => $value) { echo $value; if($key == "cat"){ echo "cat"; } else{ echo $value; } } // echo $key . "<br />"; // if($key == 'subcats'){ // echo "________".$key."<br />"; // } } } //attempt number 2 foreach ($categories $key => $value) { if($key == "arr"){ while($key){ echo $value; if($key == "cat"){ echo $value; } if($key == "subcats"){ while($key){ echo $value[$key]; } } } } } updated code tried after this
this works okay problem loop through last arr=>array() , not of ones before.
$i=0; foreach ($categories $key => $value) { if($key == "arr"){ foreach ($categories['arr'] $sub => $val) { if($sub == "cat"){ echo $val . " => "; } else if($sub == "subcats"){ for($i=0; $i<4; $i++){ echo $val[$i] . ", "; } } } } }
if can reorganize array, can stick categories keys, subcategories values:
$categories = array( 'sport' => array( "surfing", "basketball", "nfl", "afl" ), 'automotive' => array( "cars", "f1", "bikes", "etc" ), 'comedy' => array( "stand up", "pranks", "...", "test" ) ); // here imploded list, don't need second loop foreach($categories $cat => $subcat) { echo "<h1>".$cat."</h1>"; echo '<ul>'; echo '<li>'.implode('</li>'.php_eol.'<li>',$subcat).'</li>'; echo '</ul>'; } 
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