Set all array value inside loop if they are isset [closed] - php

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<?php /* for loop starts */ ?>
<div>
<input name="cat[]" type="text" />
</div>
<?php /* for loop ends */ ?>
I want to display each value inside the input box if their POST variable is set.

try this bro :
i have a similar query like this.
<?php
$j = 0;
for($i = 1; $i<=8; $i++) {
?>
<tr>
<td style="width:50% !important;">
<input type="text" class="form-control" name="cat[]" value="<?php echo isset( $_POST['cat'][$j] ) ? $_POST['cat'][$j] : ''; ?>" />
</td>
</tr>
<?php $j++; } ?>

Related

How can I get the selected value from my <select> [closed]

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Closed 1 year ago.
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I try to get the value from the select area using form and $_Post. I looked through plenty of older questions and am sure, I followed the instructions. still i get the error: Undefined array key "platz".
<form action="" method="POST">
<select name="platz">
<?php
for ($i=0; $i < $saalinfo[2]; $i++) {
echo "<option value='$i'> Reihe $i </option>";
}
?>
</select>
<select class="" name="reihe">
<?php
for ($i=0; $i < $saalinfo[3]; $i++) {
echo "<option value='$i'> Spalte $i </option>";
}
?>
</select>
<?php echo "($_POST[platz])" ?>
</form>
For clarification Saalinfo 2 and 3 contain integer so that there are different options to choose from based on the given values. Many Thanks in advance.
I also tried
<?php echo "($_POST['platz'])" ?>
When the page loads initially there will be no POST data so you get that error. Instead check that POST array is available first - like so perhaps:
<?php echo !empty( $_POST['platz'] ) ? $_POST['platz'] : ''; ?>

Checking if textarea and input isset [closed]

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Hello i want to check if the textarea isnt empty and i still can´t get the echo that i want even when the textarea isnt empty and input is set
here is my code:
<form method="post" action="">
<input type="text" name="jmeno"/>
<textarea name="textarea" id="textarea" rows="5" cols="40"></textarea>
<input type="submit" name="submit"/>
</form>
<?php
if(isset($_POST['jmeno']) AND !empty($_POST['textarea'])){
echo "dokončeno";
}
?>
How about this:
if (!is_null($_POST['jmeno']) && strlen(trim($_POST['jmeno'])) > 0) {
echo "dokončeno";
}
As far as I understand you want your code to check if the submit button is pressed and the textarea isn't empty. I would say the code is:
if(isset($_POST['jmeno'])){
if(strlen($_POST['textarea']) > 0){
echo "dokončeno";
}
}
OR simply:
if(isset($_POST['jmeno']) && strlen($_POST['textarea']) > 0){
echo "dokončeno";
}
if (isset($_POST['jmeno']) && strlen(trim($_POST['textarea']))>0)
{
echo "dokončeno";
}

How do I Get This HTML 5 Form To Give PHP The Input Data Then Display It On The Screen [closed]

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Closed 8 years ago.
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How do I Get This HTML 5 Form To Give PHP The Input Data Then Display It On The Screen. I want to collect data in a form. Convert it into a php variable and then echo it out in a way that I can read it.
<form>
First name:<br>
<input type="text" name="name">
</form>
<body>
<pre>
<?php
$taco = htmlspecialchars($_POST["name"]) . '!';
$taco = $_POST;
echo $taco;
?>
</pre>
</body
</html>
How about the following:
<?php
if($_POST) { // check if the page is posted not with a $_GET
foreach($_POST as $field => $value) { // Foreach field
$value = strip_tags($value); // Strip html tags (you can add more)
echo 'Field: '.$field.' has value: '.$value.'<br>'; // output
}
}
?>
<form action="" method="post">
First name: <input type="text" name="first_name">
<input type="submit" value="Display">
</form>
Just put it all in one php file. You can add as many fields as you want.

How to add a checkbox value using php [closed]

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Closed 8 years ago.
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I need help with this one. My checkbox value doesnt submit.
<input name="helicopter" type="checkbox" value="<?php echo $aircraft->helicopter; ?>" checked="<?php
if ($aircraft->helicopter==1) {
echo "checked";
}
?>"/>
Try this:
<input name="helicopter" type="checkbox" value="<?php echo $aircraft->helicopter; ?>"
<?php
if ($aircraft->helicopter==1) {
echo "checked";
}
?>>

How to check if the checkbox is checked or not in php? [closed]

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i have an if statement as follows
if($_POST['remember']=="on")
i want to know if this is the correct syntax for checking if the checkbox is checked or unchecked?
This code will help you
<input type="checkbox" name="checkbx" <?php if(isset($_POST['remember'])=="on") echo "checked";?> />
OR
<?php if(isset($_POST['remember'])=="on") {?>
<input type="checkbox" name="checkbx" checked="checked" />
<?php }else {?>
<input type="checkbox" name="checkbx" />
<?php }?>
simple check of isset
if(isset($_POST['remember']) && $_POST['remember']=="on")
{
// checkbox remember is checked
}
else
{
// checkbox remember is not checked
}
Use
if (isset($_POST['remember'])) {
// checked
} else {
not checked
}
<input type="checkbox" name="remember" value="YES" />
$remember= ($_POST['remember'] == 'YES')?'YES':'NO';

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