Re: Building Dynamic Value list using ohp

On another side-note, I haven't had trouble with echo "foo $arr[$a]" which is very handy in loops (especially for, while, and foreach) Also, nice to have you back, Maxim On Wednesday 26 September 2001 09:28 am, you wrote: > > The reason for it is that within double quote you can parse for 'simple' > > variables only (es: $var, not $var[]). Otherwise it gives you a parse > > error. > > Just a quick note, this is partially true. The following works : > > error_reporting(E_ALL); > > $arr = array ('a' => 'apple','b' => 'banana'); > > print "I'd like an $arr[a] today, and a {$arr['b']} too"; > > I used to assume "foo $arr[a]" would give a Warning but it doesn't as the > constant 'a' isn't looked for in the string, but : > > print $arr[a]; // apple and a Warning > // Warning: Use of undefined constant a - assumed 'a' > > define('a','b'); // define a as a constant with value of b > > print $arr[a]; // banana and no Warning > print $arr['a']; // apple and no Warning (quotes are good) > > Numerical arrays work fine in a string, such as "foo $array[0]". > > Maxim is referring to "foo $arr['a']" creating a parse error, one that > looks like : > > Parse error: parse error, expecting T_STRING' or > T_VARIABLE' or > `T_NUM_STRING' in /www/htdocs/test.php on line 4 > > As it does. The Warnings shown above refer to the E_NOTICE level. Have > fun and yes, this is a digression and off-topic :) > > Regards, > Philip Olson > > > 1. this: > > print("<option value=\"$row[0]\">$row[0]</option>"); > > should be this: > > print("<option value=\"{$row[0]}\">{$row[0]}</option>"); > > or like this: > > echo '<option > > value="'.$row[0].'">'.$row[0].'</option>'); > > > > The reason for it is that within double quote you can parse for 'simple' > > variables only (es: $var, not $var[]). Otherwise it gives you a parse > > error.