PHP/HTML - autofill form

[Jahren]

Hi guys!

here comes my next question!

 

After submitting an invalid form, a visitor could benefit from having their old inputs back into the form.

 

<input class="label_form1" type="text" name="Prénom" <?php global $valide; if(!$Valide){echo '\'value=\'' .$_POST["Prénom"]. '\'';} ?>/><br />

Having to do this for every single input is a hell of a work.

 

Is there an easier way to fill the form inputs from the last POSTed values?

[papaface]

yes.

In the page it is submitted to after validation have:

session_start();
foreach ($_POST as $k => $v)
{
if ($k != "submit")//excludes the submit button named "submit" change accordingly
  {
    $_SESSION[$k] = $v;
  }
}

That will assign every $_POST var a corresponding $_SESSION variable.

Then it is just a case of:

<?php
session_start();?>
<input class="label_form1" type="text" name="Prénom" value="<?php if ($_SESSION['Prénom']) {echo $_SESSION['Prénom']; }?>" /><br />

Done.

[Jahren]

I'm not sure I understand it all.

What would happen for a combobox with 50 values (that's an example)

 

here's an easy one :

 

       <select class="label_form1 " name="Jour1">
	<option value="Lundi">Lundi</option>
	<option value="Mardi">Mardi</option>
	<option value="Mercredi">Mercredi</option>
	<option value="Jeudi">Jeudi</option>
	<option value="Vendredi">Vendredi</option>
</select>

 

I hope you don't mean that I would need to go over all of the options and check if it's the previously selected one

[papaface]

       <select class="label_form1 " name="Jour1">
	<option value="Lundi" <?php if ($_SESSION['Jour1'] == "Lundi") {echo $_SESSION['Jour1'] ; }?>>Lundi</option>
	<option value="Mardi" <?php if ($_SESSION['Jour1'] == "Mardi") {echo $_SESSION['Jour1'] ; }?>>Mardi</option>
	<option value="Mercredi" <?php if ($_SESSION['Jour1'] == "Mercredi") {echo $_SESSION['Jour1'] ; }?>>Mercredi</option>
	<option value="Jeudi" <?php if ($_SESSION['Jour1'] == "Jeudi") {echo $_SESSION['Jour1'] ; }?>>Jeudi</option>
	<option value="Vendredi" <?php if ($_SESSION['Jour1'] == "Vendredi") {echo $_SESSION['Jour1'] ; }?>>Vendredi</option>
</select>

Only other option is to do:

$options = array("Lundi","Mardi","Mercredi","Jeudi","Vendredi");
echo '<select class="label_form1 " name="Jour1">';
foreach ($options as $k => $v)
{
echo '<option value="'.$v.'" '.if ($_SESSION['Jour1'] == '.$v.') {echo $_SESSION['Jour1'] .'>'.$v.'</option>';
}
echo '</select>';

[DarkWater]

Or you can create a loop that makes the input boxes.  Then implementing "retain values" part is easy.

[Jahren]

That's what I feared you'd answer

Thanks. There's no way a lazy programmer like myself will write 50 lines of code for that single purpose!

Let's make a function to find out which option needs a "selected='true'"

 

A loop ? hmm.

How about javascript guys? do you think it could be easier to write a javascript to assign new values to the form?

since javascript has acces to all page's elements

[papaface]

Sorry, my above code should have been:

$options = array("Lundi","Mardi","Mercredi","Jeudi","Vendredi");
echo '<select class="label_form1 " name="Jour1">';
foreach ($options as $k => $v)
{  ?>
<option value="<?php echo $v; ?>" <?php if ($_SESSION['Jour1'] == "Vendredi") {echo "selected" ; }?>><?php echo $v; ?></option>
<?php
}
echo '</select>';

[papaface]

That's what I feared you'd answer

Thanks. There's no way a lazy programmer like myself will write 50 lines of code for that single purpose!

Let's make a function to find out which option needs a "selected='true'"

 

A loop ? hmm.

How about javascript guys? do you think it could be easier to write a javascript to assign new values to the form?

since javascript has acces to all page's elements

I've already done that for you....

[Jahren]

yes i'm sorry, i've seen your edit too late

[papaface]

Sorry, my above code should have been:

$options = array("Lundi","Mardi","Mercredi","Jeudi","Vendredi");
echo '<select class="label_form1 " name="Jour1">';
foreach ($options as $k => $v)
{  ?>
<option value="<?php echo $v; ?>" <?php if ($_SESSION['Jour1'] == "Vendredi") {echo "selected" ; }?>><?php echo $v; ?></option>
<?php
}
echo '</select>';

Third time lucky lol, its late here:

$options = array("Lundi","Mardi","Mercredi","Jeudi","Vendredi");
echo '<select class="label_form1 " name="Jour1">';
foreach ($options as $k => $v)
{  ?>
<option value="<?php echo $v; ?>" <?php if ($_SESSION['Jour1'] == $v) {echo "selected" ; }?>><?php echo $v; ?></option>
<?php
}
echo '</select>';

[Jahren]

i'll re-adapt your code a bit with my javascript idea.

I need to stack the option values in php array

i'll loop them without verifying EACH time if I need to assign new values.

 

<?php
if(!$Valide)
{
	echo 'document.formulaire.Nom.value = "' .$_POST["Nom"]. '";' ;
	echo 'document.formulaire.Prénom.value = "' .$_POST["Prénom"]. '";' ;
	echo 'document.formulaire.NoAD.value = "' .$_POST["NoAD"]. '";' ;
	echo 'document.formulaire.Courriel.value = "' .$_POST["Courriel"]. '";' ;
	echo 'document.formulaire.NoTel.value = "' .$_POST["NoTel"]. '";' ;

	foreach($JoursOptions as $i => $val)
	{
		if($_POST["Jour1"] == $val)
		{
			echo 'document.formulaire.Jour1.selectedIndex = "' .$i. '";' ;
			break;
		}
	}

}
?>

 

and it works fine

thanks to everyone

 

i'll now make it as a function to accept any array with any string to find and any form element

[Jahren]

alright, here is the refined version of the script :

 

<script type="text/javascript">
<?php

function GetComboboxIndex($Options, $Match, $Element)
{
	foreach($Options as $i => $val)
	{
		if($Match == $val)
		{
			return 'document.formulaire.' .$Element. '.selectedIndex = "' .$i. '";' ;
		}
	}
	return '';
}

if(!$Valide)
{
	echo 'document.formulaire.Nom.value = "' .$_POST["LastName"]. '";' ;
	echo 'document.formulaire.Prénom.value = "' .$_POST["FirstName"]. '";' ;
	echo 'document.formulaire.NoAD.value = "' .$_POST["NoAD"]. '";' ;
	echo 'document.formulaire.Courriel.value = "' .$_POST["Email"]. '";' ;
	echo 'document.formulaire.NoTel.value = "' .$_POST["NoTel"]. '";' ;

	echo GetComboboxIndex($JoursOptions,  $_POST["Day1"], 'Day1');
	echo GetComboboxIndex($HeuresOptions,  $_POST["Hour1"], 'Hour1');
	echo GetComboboxIndex($JoursOptions,  $_POST["Day2"], 'Day2');
	echo GetComboboxIndex($HeuresOptions,  $_POST["Hour2"], 'Hour2');
	echo GetComboboxIndex($JoursOptions,  $_POST["Day3"], 'Day3');
	echo GetComboboxIndex($HeuresOptions,  $_POST["Hour3"], 'Hour3');

}
?>
</script>