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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?
910
In order to get an input value, you can use the htmlspecialchars() method and $_REQUEST variable. Note: The htmlspecialchars() method functions by converting special characters to HTML entities. The $_REQUEST variable is a built-in PHP variable that functions by getting data from the input field.
on('keyup', function() { // on keyup event in your input field $("#needs"). append(this. value);// append values from input field }); ); You want to save this value in a php variable then you need ajax call(without submitting your form) or you need to submit the form.
php" method="post"> Name: <input type="text" name="fname"'; if(isset($_POST['fname']) echo " value='$_POST['fname']"; // adds the value of any part-completed form echo ' /><br /> Age: <input type="text" name="age" '; if(isset($_POST'age']) echo " value='$_POST['age']"; // adds the value of any part-completed form echo ...
Inside the JavaScript, we can use the PHP tag to echo the PHP variable assigning it to a JavaScript variable. For example, assign a value Metallica to a variable $var inside the PHP tags. Write a script tag and inside it, write a PHP tag. Inside the PHP tag, echo a JavaScript variable jsvar .
Try something like this:
<input type="text" name="idtest" value="<?php echo htmlspecialchars($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.)
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