<?php
 
$associative_array1 = array ( 
'Objective' => array ( 0 => 'Conversions', 1 => 'Lead Generation', ),
'Gender' => array ( 0 => 'Male (17.99% cheaper )', 1 => 'Male (6.46% cheaper )  Male (16% cheaper )', ), 
'Age' => array ( 0 => '45-54 (17.99% cheaper )', 1 => '45-54 (6.46% cheaper )35-44 (16% cheaper )', ), 
'Placement' => array ( 0 => 'Mobile Feed (30.8% cheaper) right_hand (46.81% cheaper)', 1 => 'Mobile Feed (12.56% cheaper)', ), 
'Device' => array ( 0 => 'Android (30.8% cheaper) Desktop (46.81% cheaper)', 1 => 'iPhone (12.56% cheaper)', ),
 );
 
$keys = array_keys($associative_array1);
$count = count($associative_array1[$keys[0]]);
for ($i = 0; $i < $count; $i++) {
    echo "<tr>";
    foreach ($keys as $key) {
        echo "<td>" . nl2br($associative_array1[$key][$i]) . "</td>";
    }
    echo "</tr>\n";
}

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