How to increase the key value of php two-dimensional array

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Php two-dimensional array to increase the key value method: 1, create a PHP example file; 2, through the "foreach ($listening_collect as $key = > $value) {.}" method to add key value to the two-dimensional array.

This article operating environment: windows7 system, PHP7.1 version, DELL G3 computer

Php array loop to add key-value pairs

Two-dimensional array addition method:

The loop $listening_collect is a two-dimensional array to which you add a you_answer element

$listening_collect = $this- > ser_toefllistening- > zt_collect ($listening_articleid)-> result_array (); foreach ($listening_collect as $key = > $value) {/ / variable value $answer is an array of elements $answer = $this- > ser_toefllistening- > answer ($value ['id'], $u_id); $listening_collect [$key] [' you_answer'] = $answer ['answer'];}

Print the $listening_collect array

Print the $listening_collect array after adding

One-dimensional array addition method:

/ / this is an one-dimensional array to add foreach ($arr as $key = > & $vo) {$vo ['name'] =' star'; $vo ['age'] =' 24star';} $arr [$key] ['name'] =' star'; $arr [$key] ['age'] =' 24'

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$res = Db::name ('ht_let_go')-> where ("title", "like", "% $name%")-> order (' id desc')-> paginate ($size,false, ['page'= > $page,'query'= > request ()-> param ()])-> toArray () Foreach ($res ['data'] as $k = > $v) {$res [' data'] [$k] ['sum_num'] = Db::name (' ht_let_go_buy')-> where ('let_go_id',$v [' id'])-> count ();} dump ($res); die

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