What is the best way to use radio buttons? I know how to insert their value, but, I also want to make an edit form, where the current value of the radio button is selected, but you could also change it. Say if in the database, radio4 was selected; when you edited that form, the radio button with the name of radio4 would be "pushed in". What is the best way to implement this?
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Best way to use radio buttons...
- Thread starter kpdvx
- Start date
sleipnir214
Programmer
This isn't a PHP question -- it's an HTML question. But I'll answer.
If the value from the database is 2 and the possible values are 1, 2, and 3, the following will produce a set of buttons with 2 already selected:
<input type=radio name=foo value=1>
<input type=radio name=foo value=2 checked>
<input type=radio name=foo value=3>
Want the best answers? Ask the best questions: TANSTAAFL!
If the value from the database is 2 and the possible values are 1, 2, and 3, the following will produce a set of buttons with 2 already selected:
<input type=radio name=foo value=1>
<input type=radio name=foo value=2 checked>
<input type=radio name=foo value=3>
Want the best answers? Ask the best questions: TANSTAAFL!
- Thread starter
- #3
ahem, it is a PHP question. Here is a bad way to do it:
SELECT * FROM table WHERE blah=blah.
if ($one == 'checked') {
$checkedone = 'checked';
}
if ($two == 'checked') {
$checkedtwo = 'checked';
}
if ($three == 'checked') {
$checkedthree = 'checked';
}
<input type=radio name=foo value=1 <?=$onechecked?>>
<input type=radio name=foo value=2 <?=$twochecked?>>
<input type=radio name=foo value=3 <?=$threechecked?>>
Is there a simpler, cleaner way to do this?
SELECT * FROM table WHERE blah=blah.
if ($one == 'checked') {
$checkedone = 'checked';
}
if ($two == 'checked') {
$checkedtwo = 'checked';
}
if ($three == 'checked') {
$checkedthree = 'checked';
}
<input type=radio name=foo value=1 <?=$onechecked?>>
<input type=radio name=foo value=2 <?=$twochecked?>>
<input type=radio name=foo value=3 <?=$threechecked?>>
Is there a simpler, cleaner way to do this?
Yes...
First step to clean it up is to make some arrays in php, and loop over them rather than declaring each one explicitly.
so I'm not sure where $one,$two,$three came from... but instead say. (sorry if my for loop syntax is off, too many different languages today)
for ($i=0, $i < count($checked), $i++) {
echo "<input type=radio name=foo value=$i ";
if $checked = true {
echo "checked>\n";
} else {
echo ">\n";
}
-Rob
First step to clean it up is to make some arrays in php, and loop over them rather than declaring each one explicitly.
so I'm not sure where $one,$two,$three came from... but instead say. (sorry if my for loop syntax is off, too many different languages today)
for ($i=0, $i < count($checked), $i++) {
echo "<input type=radio name=foo value=$i ";
if $checked = true {
echo "checked>\n";
} else {
echo ">\n";
}
-Rob
sleipnir214
Programmer
skiflyer:
That's what the [ignore]
[/ignore] and [ignore]...[/ignore] TGML tags are for Want the best answers? Ask the best questions: TANSTAAFL!
That's what the [ignore]
Code:
...sleipnir214
Programmer
Damn. that should have read:
open-bracket ignore close-bracket ... open-bracket /ignore close-bracket Want the best answers? Ask the best questions: TANSTAAFL!
open-bracket ignore close-bracket ... open-bracket /ignore close-bracket Want the best answers? Ask the best questions: TANSTAAFL!
- Status