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How does 'foreach' actually work?


krishnanayak

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Actually?

http://php.net/manual/en/control-structures.foreach.php

 

Can iterate an arrays index of keys and values. If you want more levels deeper needs more foreach or a recursive function made.

 

If you want the underlying of how actually works...an array is storing a pile of data in lists where is a numbered or associated value, parents and childs. An array could be better viewed as a tree pattern of data. Foreach is a way to loop any of those. As for the actual function I assume the php developers keep splitting into each chunk of data using matching patterns within brackets and noting it's specific key and value.

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