I retrieve three pieces of information from the database, one integer, one string, and one date.
I echo them out to verify the variables contain the data.
When I then use the variables to populate three input boxes on the page, they do not populate correctly.
The following do not work:
id: <input type="text" name="idtest" value=$idtest>
Yes, the variable must be inside <?php var ?> for it to be visible.
So:
id: <input type="text" name="idtest" value=<?php $idtest ?> />
The field displays /.
When I escape the quotes,
id: <input type="text" name="idtest" value=\"<?php $idtest ?>\" />
the field then displays \"\".
With single quotes
id: <input type="text" name="idtest" value='<?php $idtest ?>' />
the field displays nothing or blank.
With single quotes escaped,
id: <input type="text" name="idtest" value=\'<?php $name ?>\' />
the field displays \'\'.
With a forward slash (I know that's not correct, but to eliminate it from the discussion),
id: <input type="text" name="idtest" value=/"<?php $name ?>/" />
the field displays /"/".
Double quotes, escape double quotes, escape double quotes on left side only, etc. do not work.
I can set an input box to a string. I have not tried using a session variable as I prefer to avoid do that.
What am I missing here?
Try something like this:
<input type="text" name="idtest" value="<?php echo htmlspecialchars($name); ?>" />
That is, the same as what thirtydot suggested, except preventing XSS attacks as well.
You could also use the <?= syntax (see the note), although that might not work on all servers. (It's enabled by a configuration option.)
You need, for example:
<input type="text" name="idtest" value="<?php echo $idtest; ?>" />
The echo function is what actually outputs the value of the variable.
Solution
You are missing an echo. Each time that you want to show the value of a variable to HTML you need to echo it.
<input type="text" name="idtest" value="<?php echo $idtest; ?>" >
Note: Depending on the value, your echo is the function you use to escape it like htmlspecialchars.
From the HTML point of view everything's been said, but to correct the PHP-side approach a little and taking thirtydot's and icktoofay's advice into account:
<?php echo '<input type="text" name="idtest" value="' . htmlspecialchars($idtest) . '">'; ?>
If you want to read any created function, this how we do it:
<input type="button" value="sports" onClick="window.open('<?php sports();?>', '_self');">
I have been doing PHP for my project, and I can say that the following code works for me. You should try it.
echo '<input type = "text" value = '.$idtest.'>';
Related
My query extract a data value from mysql table where are a double quote in the text.
Select mytitle from title_table
The result is: This is my title: "for school"
This value I want to put inside a text field, but is truncated in this position This is my title:
I print the title by this: <?php echo $rows['mytitle']; ?>
How to put the entire title in a text field?
Thanks
Print inside the value of the text field, example:
<input type="text" name="title" value="<?php echo $rows['mytitle']; ?>">
I have resolve this problem. Are easy, but in a first time make a wrong Google search.
I have resolve by this: htmlentities
I think you search for this
<?php
echo '<input type="text" value="' . $rows['mytitle'] . '">';
?>
or in plain HTML with
<input type="text" value="<?=$rows['mytitle'];?>">
Look to, for the second example you must have enabled short_tags in your php.ini or use
<input type="text" value="<?php echo $rows['mytitle'];?>">
try this
<input type="text" name="yourkey" value="<?php echo $rows['mytitle'] ?>" />
I'm getting the variable within textbox as $Dataprefix=hello, but what I want is to show the values within quotes as "hello"
Here's my code.
Data File Prefix Name: <input size="5" name="dataprefix" type="text" value="<?php echo $Dataprefix;?>">
and it shows value within textbox as hello
Then try this way it'll work for you
Data File Prefix Name: <input size="5" name="dataprefix" type="text" value='"<?php echo $Dataprefix;?>"'>
^^ ^^
You missed the echo. Try this
Data File Prefix Name: <input size="5" name="dataprefix" type="text" value="<?php echo $Dataprefix;?>">
Use echo to print variable
value="<?php echo $Dataprefix;?>">
If you want the variable wrapped quotation marks to be displayed then :
echo '"'.$Dataprefix.'"';
If you only want to echo the variable when it satisfies "hello" :
echo ($Dataprefix === 'hello'? $Dataprefix : '' );
If this isn't what you are looking for then I would recommend rephrasing your question.
I have a data stored in database valued xy". When I print this value in tag, or quote sign is visible. But when i output this value in input field, double quote isn't visible(it's still in database).
<input type="text" value="<?php echo $value ?>" />
The interesting thing is, when I use 2 single qoutes, output is equal to the value in database(xy''). Any ideas
Try this one
<input type="text" value="<?php echo htmlspecialchars($value) ?>" />
I am trying to echo a string in a search box. However so far it only echos the first word of the string.
require 'search.php';
$searchQuery = $_GET['searchText'] ;
echo $searchQuery;//prints "this is a test"
$search = new Search();
$search->run($searchQuery);
.
.
<input name="searchText" type="text" id="searchText" size=70 value = <?php echo $searchQuery; // prints "this"?> />
Try adding quotes:
<input name="searchText" type="text" id="searchText" size="70" value="<?php echo htmlspecialchars($searchQuery); ?>"/>
As Esailija pointed out, escaping properly with htmlspecialchars() is a better solution and will ensure it prints the value correctly whatever the search may be.
You need to add quotes around the value of the 'value' attribute, as such:
<input name="searchText" type="text" id="searchText" size=70 value="<?php echo $searchQuery; // prints "this"?>" />
Otherwise this is what will render:
<input name="searchText" type="text" id="searchText" size=70 value = this is some sentent />
which defines value of the attribute named 'value' to be "this", and then creates more (meaningless) attributes "is", "some" and "sentence" which have no values. Quotes are important! You should also probably quote your size variable although it's not important in this case.
Also note that not inspecting and/or sanitizing the GET variable leaves you open to HTML/Javascript injection attacks -- if I provided the value word onClick='doSomething();' as the GET variable value, I could execute javascript on the client. If this were rendered as part of a comments section of a website as such, I could potentially inject other client's machines with arbitrary javascript.
[EDIT]
You can accomplish this by using htmlspecialchars as pointed out by Esailija. For more information about common web vulnerabilities and the reason for sanitizing GET variables, perhaps you should check out OWASP
It's happening because you don't have quotes around it, so what you're actually outputting is
<input ... value = this is a test />
So it's assigning the first token as the "value" property.
Try this:
<input ... value="<?php echo $searchQuery; ?>" />
Try this:
<input name="searchText" type="text" id="searchText" size="70" value="<?php echo $searchQuery; ?>" />
when I have a value like this in the database ("foo")
how can I echo it without any conflict with html code
notice
<input type="text" value="<? echo '"foo"'; ?>" />
the result will be like this
<input type="text" value=""foo"" />
how can I fix it ?
use urlencode
or htmlspecialchars
link
You can use htmlentities to overcome this problem like so:
<input type="text" value="<? echo htmlentities('"foo"'); ?>" />
this will return
<input type="text" value=""foo"" />
avoiding any conflict with html.
htmlspecialchars() basically, for example
<input type="text" value="<? echo htmlspecialchars($value, ENT_QUOTES); ?>" />
The ENT_QUOTES is optional and also encodes the single quote ' .
I used $value since I'm not sure what exactly you have in the database (with or without quotes?) but it will sit in some kind of variable if you want to use it anyway, so, I called that $value.
Since the above is a bit unwieldy I made a wrapper for it:
// htmlents($string)
function htmlents($string) {
return htmlspecialchars($string, ENT_QUOTES);
}
So you can
<input type="text" value="<? echo htmlents($value); ?>" />
Not to be confused with the existing htmlentities(), which encodes all non-standard characters. htmlspecialchars() only encodes &, <, >, " and ', which is more appropriate for UTF8 pages (all your webpages are UTF8, right? ;-).
First, don't use short tags ('
Next, your HTML is malformed because you've got an extra set of quotes. Since you seem to be taking the approach of embedding PHP into the HTML, then a quick fix is:
<input type="text" value="<?php echo 'foo'; ?>" />
...although since this value is coming from your database it will be stored in a variable, probably an array, so your code should look more like:
<input type="text" value="<?php echo $db_row['foo']; ?>" />
For clarity, most programmers would try to eliminate switching between PHP parsed and non-parsed code either using a template system like smarty or....
<?php
....
print "<input type='text' value='$db_row[foo]' />\n";
....
?>
(Note that
1) when the variable is within double quotes with a block of PHP, the value is automatically substituted
2) when refering to an associative array entry within a double quoted string, the index is NOT quoted.
HTH
C.
<?php
echo "<input type='text' value='{$foo}' />" ;
?>