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<?php function a() { $myArray = array(); $myArray[1] = array(1,2,3,4,5,6,7,8,9,10); $myArray[2] = array(1,2,3,4,5,6,7,8,9,10); $myArray[3] = array(1,2,3,4,5,6,7,8,9,10); debug_zval_dump($myArray[1]); } function b() { $myArray = array(); $myArray[1] = array(1,2,3); $myArray[2] = array(1,2,3); $myArray[3] = array(1,2,3); $myArray[4] = array(1,2,3); $myArray[5] = array(1,2,3); $myArray[6] = array(1,2,3); $myArray[7] = array(1,2,3); $myArray[8] = array(1,2,3); $myArray[9] = array(1,2,3); $myArray[10] = array(1,2,3); debug_zval_dump($myArray[1]); } a();b();
Output for git.master, git.master_jit, rfc.property-hooks
array(10) refcount(3){ [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) [4]=> int(5) [5]=> int(6) [6]=> int(7) [7]=> int(8) [8]=> int(9) [9]=> int(10) } array(3) refcount(3){ [0]=> int(1) [1]=> int(2) [2]=> int(3) }

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