PHP ==, ===

PHP ==

<?php
echo "<h2>0</h2>";
if(0) echo "true";
else echo "false";

echo "<h2>'abc'</h2>";
if('abc') echo "true";
else echo "false";

echo "<h2>0 == 'abc'</h2>";
if(0 == 'abc') echo "true";
else echo "false";

echo "<h2>'0' == 'abc'</h2>";
if('0' == 'abc') echo "true";
else echo "false";

echo "<h2>0 === 'abc'</h2>";
if(0 === 'abc') echo "true";
else echo "false";

echo "<h2>'0' === 'abc'</h2>";
if('0' === 'abc') echo "true";
else echo "false";

→ http://jmnote.com/php/equalequal.php

참고 자료

• http://www.phpschool.com/gnuboard4/bbs/board.php?bo_table=talkbox2&wr_id=752957&sca=&sfl=wr_subject&stx=false&sop=and