PHP Manual: IS

IS_EQUAL


<?php
/*
 * compares if value1 and value2 are equal
 * opcode number: 17
 */
echo (1 == 1);
echo (1 == 'c');
?>

Function name: (null)

Compiled variables: none

line	#	op	return	operands
6	0	IS_EQUAL	~0	1,1
	1	ECHO		~0
7	2	IS_EQUAL	~1	1,'c'
	3	ECHO		~1
8	4	RETURN		1