Php/docs/internals2.opcodes.fetch-dim-r
From Get docs
FETCH_DIM_R
PHP code
<?php/* * Fetch the value of the element at "index" in "array-value" to store it in "result". Read-only? * opcode number: 81 */$x = array(1,2,3);$a = 'x';echo $$a[0];?>
PHP opcodes
Function name: (null)
Compiled variables: !0=$x, !1=$a
| line | # | op | fetch | ext | return | operands |
|---|---|---|---|---|---|---|
| 6 | 0 | INIT_ARRAY | ~0 | 1 | ||
| 1 | ADD_ARRAY_ELEMENT | ~0 | 2 | |||
| 2 | ADD_ARRAY_ELEMENT | ~0 | 3 | |||
| 3 | ASSIGN | !0,~0 | ||||
| 7 | 4 | ASSIGN | !1,'x' | |||
| 8 | 5 | FETCH_DIM_R | $3 | !1,0 | ||
| 6 | FETCH_R | local | $4 | $3 | ||
| 7 | ECHO | $4 | ||||
| 9 | 8 | RETURN | 1 |
