SEND_VAR

PHP code

<?php
/*
 * Pass the variable value as an actual parameter to a function.  DO_FCALL follows.
 * opcode number: 66
 */
$a = array(1,2,3);
if(is_array($a)){ return 0; }
?>

PHP opcodes

Function name: (null)

Compiled variables: !0=$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	SEND_VAR				!0
	5	DO_FCALL		1		'is_array'
	6	JMPZ				$2,->9
	7	RETURN				0
	8	JMP				->9
8	9	RETURN				1