RE: [PHP] bug in echo function?

From: Date: Fri, 18 Jan 2002 18:54:49 +0000
Subject: RE: [PHP] bug in echo function?
Groups: php.general 
Request: Send a blank email to php-general+get-81131@lists.php.net to get a copy of this message
Good day, The reason that the first statement doesn't work as intended is due to the order that the operands are processed. The operands in the line: "<td>" . ($i*8)+$j . "</td>" are being processed like this: ("<td>" . ($i*8))+($j . "</td>") If you change the line to: "<td>" . (($i*8)+$j) . "</td>" then you'll get the desired result. Rule of thumb: Use parenthesis whenever you have a complex operation to ensure the result is what you want. ============================ Darren Gamble Planner, Regional Services Shaw Cablesystems GP 630 - 3rd Avenue SW Calgary, Alberta, Canada T2P 4L4 (403) 781-4948 -----Original Message----- From: Billy Harvey [mailto:Billy.Harvey@thrillseeker.net] Sent: Friday, January 18, 2002 11:44 AM To: php Subject: [PHP] bug in echo function? I ran across a curious bug in the echo function this morning. My PHP is Debian binary 4.1.1-1. The first example below does not work (it should draw a checkerboard-like table): ----- <html> <head> <title>Chess</title> <body> <table border=1> <? for ($i=0 ; $i<8 ; $i++) { echo "<tr align=center valign=center>"; for ($j=0 ; $j<8 ; $j++) { echo "<td>" . ($i*8)+$j . "</td>"; } echo "</tr>\n"; } ?> </table> </body> </html> ----- However, by changing the echo line to two echo lines, it works as desired: ----- <html> <head> <title>Chess</title> <body> <table border=1> <? for ($i=0 ; $i<8 ; $i++) { echo "<tr align=center valign=center>"; for ($j=0 ; $j<8 ; $j++) { echo "<td>"; echo ($i*8)+$j . "</td>"; } echo "</tr>\n"; } ?> </table> </body> </html> ----- I don't see any limitations about concatenating strings in the man page of the echo statement. Perhaps this is a bug? Billy -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net For additional commands, e-mail: php-general-help@lists.php.net To contact the list administrators, e-mail: php-list-admin@lists.php.net

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