PHP learning array

This article will share with you the knowledge of arrays in PHP. Friends in need can refer to it

Arrays are not very simple
int a[1100000]
But PHP is not like this

This is a three-dimensional array, is it a little troublesome?
Let’s start with one-dimensional arrays.

This is an array. I have a full arrangement of php

"; } else{ for($i=1;$i<=n;$i++){ if($v[$i]==true){ $v[$i]=false; $a[$k]=$i; dfs($k+1); $v[$i]=true; } } } } dfs(5);?>

This is to find the full arrangement of 5.
It seems a little wrong, but don’t be afraid.
Just look at the example
Just connect the two-dimensional one to the very simple one
That’s it

$s=array(array());

That’s it
I will update a chapter tomorrow, what will I talk about?
Let’s talk about some operation loops.

Isn’t an array very simple?
int a[1100000]
But php is not like this

This is a three-dimensional array, is it a little troublesome?
Let’s start with one-dimensional arrays.

This is an array. I have a full arrangement of php

"; } else{ for($i=1;$i<=n;$i++){ if($v[$i]==true){ $v[$i]=false; $a[$k]=$i; dfs($k+1); $v[$i]=true; } } } } dfs(5);?>

This is to find the full arrangement of 5.
It seems a little wrong, but don’t be afraid.
Just look at the example
Just connect the two-dimensional one to the very simple one
That’s it

$s=array(array());

That’s it
I will update a chapter tomorrow, what will I talk about?
Let’s talk about some operation loops.

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