ADD_VAR

PHP code

<?php
/*
 * add contents of variable in value2 to string value1 and store in result
 * opcode number: 56
 */
echo "hello$a world";
?>

PHP opcodes

Function name: (null)

Compiled variables: !0=$a

line # op fetch ext return operands
6 0 ADD_STRING     ~0 'hello'
  1 ADD_VAR     ~0 ~0,!0
  2 ADD_STRING     ~0 ~0,'+world'
  3 ECHO       ~0
7 4 RETURN       1
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