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  • Opcode Descriptions and Examples
  • ISSET_ISEMPTY_VAR

ISSET_ISEMPTY_VAR

PHP code

<?php
/*
 * Tests if the value of a variable is set or not.
 * opcode number: 114
 */
if(isset($a)){ return 0;}
?>

PHP opcodes

Function name: (null)

Compiled variables: !0=$a

line # op fetch ext return operands
6 0 ZEND_ISSET_ISEMPTY_VAR   5 ~0 !0
  1 JMPZ       ~0,->4
  2 RETURN       0
  3 JMP       ->4
7 4 RETURN       1
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