CODEWITHSUNDEEP
phphtml
heisenberg
heisenberg

Reputation: 1954

Passing php variable as hidden input where html is contained in one echo

<?php
if(isset($_POST['btnLogin'])){
    $myVariable = $_POST['fieldParameter'];

    if(condition){
        //do something
    }else{

      echo "  
        <form method='POST' action='submit.php'><br/>       
          <input type='hidden' name='myVariable' value='<?php echo $myVariable; ?>'/>
          <br/>
          <input type='submit' name='btnSubmit' id='submit' value='Submit'>
        </form>

          ";
        }
}
?>

Notice that the variable $myVariable is contained in the main IF block. I'm trying to send the value of $myVariable to submit.php as hidden field.

Also, i enclosed all the html tags using one echo statement with double quotes.

I found related questions here in SO but can't find similar to embedding php within a long echo of html tags

I tried to put value='<?php echo $studentNo; ?>' with no success.

I want to access it in a submit.php file like this,

submit.php

<?php 
    $aVariable = $_POST['myVariable'];
    echo $aVariable;
?>

How can I pass the value contained in $myVariable as hidden field? Is there something wrong with the way I use double and single quotes?

Upvotes: 2

Views: 4212

Answers (2)

SOFe
SOFe

Reputation: 8214

You just need to type $myVariable instead of in your string. Double quotes "" only creates a string literal. It doesn't directly output data like inline HTML. As you can see from the syntax coloring in StackOverflow, the

You can try these variants (simplified):

// code before
echo "<input type='hidden' name='myVariable' value='$myVariable'/>";
// code after

// OR //

// code before
?>
<input type='hidden' name='myVariable' value='<?= $myVariable ?>'/>
<?php
// code after

Note that the quotes you use in HTML don't affect PHP, as long as you escape them properly (use \" and \' where appropriate).

Upvotes: 0

pappfer
pappfer

Reputation: 181

If you are already echoing a string you shouldn't put <?php echo "" ?> inside it again. You should concatenate your string instead. But in your case you don't even need to do that, because you're using double quotes for echoing which means you can simply just write your variable in it.

echo "<form method='POST' action='submit.php'><br/>       
      <input type='hidden' name='myVariable' value='$myVariable;'/>
      <br/>
      <input type='submit' name='btnSubmit' id='submit' value='Submit'>
    </form>";

If you were using single quotes for your echo, it would look like this:

echo '<form method="POST" action="submit.php"><br/>
    <input type="hidden" name="myVariable" value="' . $myVariable . '"/><br/>
    <input type="submit" name="btnSubmit" id="submit" value="Submit">
</form>';

Upvotes: 4

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