Php array usage _ PHP Tutorial

Php array usage. Array ([0] Array ([userid] 1 [username] Liu Zhenpeng [status] 0 [userpwd]) [1] Array ([userid] 2 [username] Liu Pengfei [status] 0 [userpwd]) [2] Array ([use Array ([0] => Array ([userid] => 1 [username] => Liu Zhenpeng [status] => 0 [userpwd] =>) [1] => Array ([userid] => 2 [username] => Liu Pengfei [status] => 0 [userpwd] =>) [2] => Array ([userid] => 3 [username] => Liu Peng [status] => 0 [userpwd] =>) [3] => Array ([userid] => 4 [username] => admin [status] => 0 [userpwd] =>) [4] => Array ([userid] => 11 [username] => admin [status] => 0 [userpwd] =>) [5] => Array ([userid] => 12 [username] => admin [status] => 0 [userpwd] =>) [6] => Array ([userid] => 13 [username] => liuzp [status] => 0 [userpwd] =>) [7] => Array ([userid] => 14 [username] => lzp [status] => 0 [userpwd] => ))

The following describes how to use a two-dimensional array.
For ($ I = 0; $ I
{
For ($ j = 0; $ j
{
Echo $ array [$ j] [userid];
}
}
Because it is a multi-dimensional array, it is generally used
Foreach ($ arr as $ key => $ value ){
Echo "Key: $ key; Value: $ value
N ";
}

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