jasonstairs Posted June 22, 2007 Share Posted June 22, 2007 I am a newbie and have been trying really hard to figure this out but am now at a loss. I have the following array: ARRAY: Array ( [0] => Array ( [Field] => Array ( [Chemistry] => Array ( [Physical Chemistry] => Array ( [Jason Stairs] => Array ( [0] => time-of-flight mass spectrometry [1] => computer programming [2] => [3] => [4] => [5] => [6] => ) ) ) ) ) [1] => Array ( [Field] => Array ( [Materials] => Array ( [Materials Chemistry] => Array ( [Roshan Shrestha] => Array ( [0] => awesome [1] => cool [2] => super [3] => Rock and roll [4] => [5] => [6] => ) ) ) ) ) [2] => Array ( [Field] => Array ( [Physics] => Array ( [Nuclear Physics] => Array ( [Laura Stonehill] => Array ( [0] => Dark matter [1] => Neutrino [2] => Low-background [3] => Pulse-shape analysis [4] => Detector development [5] => [6] => ) ) ) ) ) [3] => Array ( [Field] => Array ( [Chemistry] => Array ( [inorganic Chemistry] => Array ( [Robert Smith] => Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => [5] => [6] => ) ) ) ) ) [4] => Array ( [Field] => Array ( [Physics] => Array ( [Astronomy] => Array ( [Redding Ryan] => Array ( [0] => [1] => [2] => [3] => [4] => [5] => [6] => ) ) ) ) ) [5] => Array ( [Field] => Array ( [Chemistry] => Array ( [Physical Chemistry] => Array ( [Tome Jones] => Array ( [0] => [1] => [2] => [3] => [4] => [5] => [6] => ) ) ) ) ) ) What I would like to do is merge all of the [Field] keys into one so that all of the [chemistry]s and [physics] etc would all appear under [Field] with no overwrites and containing all of their info. I thought that I could do this by splitting the array into a number of separate arrays (at the [0], [1], etc keys) and then array_merge_recursive, but I don't know how to split the main array into the separate arrays and I don't know if this is the best way to do it anyway...? Ultimately I want to have my php read the data entered into the MySql database (that is how I got the above array) and then use a funtion similar to this: function CDwriter($FieldList, $Name) { foreach ($FieldList as $OptionKey => $Option) //$OptionKey is Field? $Option is disc.? { if (is_array($Option)) { $str .= "<li><a href=\"#\">$OptionKey</a>\n\t<ul>\n"; // write Field html foreach ($Option as $OptionValue) //for each of the disc's { $str .= "\t\t<li><a href=\"#\">$OptionValue</a>\n\t\t\t<ul>\n"; // write disc line foreach ($Name as $NameValue) // for each name in that disc { $str .= "\t\t\t\t<li><a href=\"#\">$NameValue</a></li>\n"; //write name html } $str .= "\t\t\t</ul>\n\t\t</li>\n"; // close name <ul> and disc <li> } $str .= "\t</ul>\n</li>\n"; // close disc <li> } } $str .= "</ul>\n"; //close field <ul> and <li> return $str; } where $FieldList is my manipulated array, in order to create html code that looks similar to this: <li><a href="#">Chemistry</a> <ul> <li><a href="#">Physical Chemistry</a> <ul> <li><a href="#"></a></li> <li><a href="#"></a></li> <li><a href="#"></a></li> <li><a href="#"></a></li> <li><a href="#"></a></li> <li><a href="#"></a></li> </ul> </li> <li><a href="#">Inorganic Chemistry</a> <ul> <li><a href="#"></a></li> <li><a href="#"></a></li> <li><a href="#"></a></li> <li><a href="#"></a></li> <li><a href="#"></a></li> <li><a href="#"></a></li> </ul> </li> </ul> </li> <li><a href="#">Materials</a> <ul> <li><a href="#">Materials Chemistry</a> <ul> <li><a href="#"></a></li> <li><a href="#"></a></li> <li><a href="#"></a></li> <li><a href="#"></a></li> <li><a href="#"></a></li> <li><a href="#"></a></li> </ul> </li> <li><a href="#">Analytical Chemistry</a> <ul> <li><a href="#"></a></li> <li><a href="#"></a></li> <li><a href="#"></a></li> <li><a href="#"></a></li> <li><a href="#"></a></li> <li><a href="#"></a></li> </ul> </li> </ul> </li> etc, where the names of the people in the appropriate fields and disciplines are listed. Any help would be greatly appreciated, particularly with how to manipulate that first array as well as any suggestions on better ways to tackle the problem in general. Thanks! Quote Link to comment https://forums.phpfreaks.com/topic/56756-splitting-and-combining-a-multiarray/ Share on other sites More sharing options...
sasa Posted June 23, 2007 Share Posted June 23, 2007 try <?php $a = Array( '0' => Array( 'Field' => Array( 'Chemistry' => Array( 'Physical Chemistry' => Array ( 'Jason Stairs' => Array('time-of-flight mass spectrometry', 'omputer programming', '' ,'' ,'', '', '') ) ) ) ), '1' => Array( 'Field' => Array( 'Materials' => Array( 'Materials Chemistry' => Array( 'Roshan Shrestha' => Array('awesome', 'cool', 'super', 'Rock and roll', '', '', '') ) ) ) ), '2' => Array( 'Field' => Array( 'Physics' => Array( 'Nuclear Physics' => Array( 'Laura Stonehill' => Array('Dark matter', 'Neutrino', 'Low-background', 'Pulse-shape analysis', 'Detector development', '', '') ) ) ) ), '3' => Array( 'Field' => Array( 'Chemistry' => Array( 'Inorganic Chemistry' => Array( 'Robert Smith' => Array( 1, 2, 3, 4, '', '', '') ) ) ) ), '4' => Array( 'Field' => Array( 'Physics' => Array( 'Astronomy' => Array( 'Redding Ryan' => Array( '', '', '', '', '', '', '') ) ) ) ), '5' => Array( 'Field' => Array( 'Chemistry' => Array( 'Physical Chemistry' => Array( 'Tome Jones' => Array( '', '', '', '', '', '', '') ) ) ) ) ); $out = array(); foreach ($a as $field) { foreach ($field['Field'] as $dep => $subdep){ if (isset($out[$dep])) $out[$dep] = array_merge_recursive($out[$dep],$subdep) ; else $out[$dep] = $subdep; } } print_r($out); ?> Quote Link to comment https://forums.phpfreaks.com/topic/56756-splitting-and-combining-a-multiarray/#findComment-280826 Share on other sites More sharing options...
jasonstairs Posted June 27, 2007 Author Share Posted June 27, 2007 Thank you. I will look into this as soon as I get a chance!!! Quote Link to comment https://forums.phpfreaks.com/topic/56756-splitting-and-combining-a-multiarray/#findComment-283539 Share on other sites More sharing options...
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