php教程

SL

PHP code

<?php
/*
 * Shift bits of value1 to the left value2 steps (each step means "multiply by two")
 * opcode number: 6
 */
echo << 2;
?>

PHP opcodes

Function name: (null)

Compiled variables: none

line#op fetchextreturn operands
60 SL   ~0 8,2
 1 ECHO     ~0
72 RETURN     1

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