"PHP ==, ==="의 두 판 사이의 차이

2021년 4월 17일 (토) 20:59 기준 최신판

echo ( 0 ) ? "yes": "no";

echo ( 'abc' ) ? "yes" : "no";

echo ( 0 == 'abc' ) ? "yes" : "no";

echo ( '0' == 'abc' ) ? "yes" : "no";

echo ( 0 === 'abc' ) ? "yes" : "no";

echo ( '0' === 'abc' ) ? "yes" : "no";

@@ 2번째 줄: / 2번째 줄: @@
 ==예제 소스 코드==
-<source lang='php'>
+<syntaxhighlight lang='php' run>
-<?php
+echo ( 0 ) ? "yes": "no";
-echo "<h2>0</h2>";
+</syntaxhighlight>
-if(0) echo "true";
+<syntaxhighlight lang='php' run>
-else echo "false";
+echo ( 'abc' ) ? "yes" : "no";
+</syntaxhighlight>
+<syntaxhighlight lang='php' run>
+echo ( 0 == 'abc' ) ? "yes" : "no";
+</syntaxhighlight>
+<syntaxhighlight lang='php' run>
+echo ( '0' == 'abc' ) ? "yes" : "no";
+</syntaxhighlight>
+<syntaxhighlight lang='php' run>
+echo ( 0 === 'abc' ) ? "yes" : "no";
+</syntaxhighlight>
+<syntaxhighlight lang='php' run>
+echo ( '0' === 'abc' ) ? "yes" : "no";
+</syntaxhighlight>
-echo "<h2>'abc'</h2>";
+==같이 보기==
-if('abc') echo "true";
+* [[==]]
-else echo "false";
+* [[PHP array_search()]]
+* [[PHP 0, '', null, false 비교]]
-echo "<h2>0 == 'abc'</h2>";
+==참고==
-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";
-</source>
-:→ 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
+*http://php.net/manual/en/types.comparisons.php
 [[분류:PHP]]