php - How to create a dynamic array variable -

i have these arrays , want loop through every array creating dynamic variable put name in foreach loop automatically this

foreach ($activities.$i &$activity) { //$i = 1,2,3,4..    //code  }  //activities $activities1 = $_post["activities1"]; $activities2 = $_post["activities2"]; $activities3 = $_post["activities3"]; $activities4 = $_post["activities4"]; 

easier method use array naming hack:

<input name="activities[1]" ..> <input name="activities[2]" ..> <input name="activities[3]" ..> 

which makes $_post['activities'] array:

foreach($_post['activities'] $i => $value) {    // $i -> 1,2,3,4 } 

but if insist on embedding index inside key's name, then:

foreach(range(1,4) $i) {     foreach($_post["activities{$i}"] $value) {         ...     } }