hi all,
For example I have array like below:
$temp = array(array('north america', 'us', 'california'), array('north america', 'us', 'hawaii'), array('north america', 'canada', 'vancouver'), array('asia', 'singapore', 'orchard');
I need to filter it out. So i hope the result could be:
array
'north america' =>
array
'us' =>
array 0 =>string 'california'
1 =>string 'hawai'
'asia' =>
array
'singapore'
array 0 => string 'orchard'
Anyone could help me to sorf out the logic? I just cannot solve this question.
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