- array_combine: documentation ( source)
- array_keys: documentation ( source)
<?php
$arr1 = array(
'key1a'=>'value',
'key2a'=>'value',
'key3a'=>'value'
);
$arr2 = array(
'key7b'=>'value',
'key8b'=>'value',
'key9b'=>'value'
);
foreach($arr1 as $i => $val)
{
foreach($arr2 as $j => $val2)
{
echo $i . " = " . $j . ", ";
}
}
$newarr = array_combine(array_keys($arr1), array_keys($arr2));
echo $newarr;