I have a post form with a text area in it. When I save the text from my textarea into mysql db, the text is saved with some white spaces before and after my actual test.
Why is happening this? How can I overcome this?
Thanks in advance
There's probably whitespace in your markup. For example:
<textarea>
<?php echo ($textareavalue); ?>
</textarea>
You could either remove the whitespace
<textarea><?php echo ($textareavalue); ?></textarea>
Or you could trim() the input before storing it to the database
$_POST ['textareavalue'] = trim ($_POST ['textareavalue']);
If you have code like this:
<textarea name="foobar">
<? echo $contents; ?>
</textarea>
Then you are adding whitespace to the value before/after the <? ... ?> tags (note, php does try to remove whitespace in some situations, so sometimes you can get away with it).
The fix is to do this:
<textarea name="foobar"><? echo $contents; ?></textarea>
you can use trim function before inserting into database for perticular that post data...
$text_area = trim($_POST['text_area']);
it will remove spaces from begining and end of the string...
Related
There seems to be a bug in a Wordpress PHP function that leaves whitespace in front of the title of the page generated by <?php echo wp_title(''); ?> I've been through the Wordpress docs and forums on that function without any luck.
I'm using it this way <body id="<?php echo wp_title(''); ?>"> in order to generate an HTML body tag with the id of the page title.
So what I need to do is strip that white space, so that the body tag looks like this <body id="mypage"> instead of this <body id=" mypage">
The extra white space kills the CSS I'm trying to use to highlight menu items of the active page. When I manually add a correct body tag without the white space, my CSS works.
So how would I strip the white space? Thanks, Mark
Part Two of the Epic
John, A hex dump was a good idea; it shows the white space as two "20" spaces. But all solutions that strip leading spaces and white space didn't.
And, <?php ob_start(); $title = wp_title(''); ob_end_clean(); echo $title; ?>
gives me < body id ="">
and <?php ob_start(); $title = wp_title(''); echo $title; ?>
gives me < body id =" mypage">
Puzzle. The root of the problem is that wp_title has optional page title leading characters - that look like chevrons - that are supposed to be dropped when the option is false, and they are, but white space gets dumped in.
Is there a nuclear option?
Yup, tried them both before; they still return two leading spaces... arrgg
Strip all whitespace from the left end of the title:
<?php echo ltrim(wp_title('')); ?>
Strip all whitespace from either end:
<?php echo trim(wp_title('')); ?>
Strip all spaces from the left end of the title:
<?php echo ltrim(wp_title(''), ' '); ?>
Remove the first space, even if it's not the first character:
<?php echo str_replace(' ', '', wp_title(''), 1); ?>
Strip only a single space (not newline, not tab) at the beginning:
<?php echo preg_replace('/^ /', '', wp_title('')); ?>
Strip the first character, whatever it is:
<?php echo substr(wp_title(''), 1); ?>
Update
From the Wordpress documentation on wp_title, it appears that wp_title displays the title itself unless you pass false for the second parameter, in which case it returns it. So try:
<?php echo trim(wp_title('', false)); ?>
ltrim()
ltrim($str)
Just to throw in some variety here: trim
<body id="<?=trim(wp_title('', false));?>">
Thanks for this info! I was in the same boat in that I needed to generate page ids for CSS purposes based on the page title and the above solution worked beautifully.
I ended up having an additional hurdle in that some pages have titles with embedded spaces, so I ended up coding this:
<?php echo str_replace(' ','-',trim(wp_title('',false))); ?>
add this to your functions.php
add_filter('wp_title', create_function('$a, $b','return str_replace(" $b ","",$a);'), 10, 2);
should work like a charm
I have an entry in my mysql table that contains html code:
<p>Hello!</p>
This shows up fine when I want to display it echo $entry
but when I place echo $entry in a textarea's value, it executes the code instead of showing it.
Is there any way to stop the code from executing and show the tags or convert to and from <>
Here is the code:
echo "<label for=\"details\">Details:</label><textarea id=\"details\" cols=\"60\" rows=\"10\" name=\"details\" value=\"" . $row["details"]."\"></textarea>";
Here is the entry:
<p><ol><li>HKCU/Software/Microsoft/Windows/NT/CurrentVersion/WindowsLegacy/DefaultPrinterMode<li> Set to 0 (on)</ol>
You have to escape special characters. You can do that with htmlspecialchars().
What's more, You should not set a value to the textarea but rather write it in its content:
<textarea>
<?php /* some code here */ ?>
</textarea>
i think this this will do it
<textarea><?php echo $row['details'];?></textarea>
try to save data lik
ascii_to_entities($this->input->post('ur_textara_name'));
and at the time of display
entities_to_ascii()
I'm trying to populate a form with some data that contains special characters (e.g. single quote, double quote,<,>,?,","".~,,!##$%^&*()_+}{":?<<>,./;'[.] etc) :
<input type="text" name="message" size="200" maxlength="200"
value =<?php echo $message;?>>
However, $message, which comes from a MySQL table, isn't displayed correctly - any HTML output that should be in $message is broken.
How do I do this properly?
This will prevent your tags from being broken by the echo:
<?php echo htmlentities($message); ?>
If you want to display it
echo htmlspecialchars($messge, ENT_QUOTES, 'UTF-8');
That's what I usually do.
Since the answers are difference:
htmlentities-vs-htmlspecialchars is worth checking out.
I normally use the following code, see htmlspecialchars
<?php echo htmlspecialchars($videoId, ENT_QUOTES | ENT_HTML5); ?>
whats wrong with using a constant ?
<?php
define(foo,'<,>,?,","".~,,!##$%^&*()_+}{":?<<>,./;');
$foo2="'[.]";
echo constant('foo').$foo2;
?>
you need to put the '[.]' into a variable, as a constant will break on a ' (single quote).
I haven't found anytihng in Google or the PHP manual, believe it or not. I would've thought there would be a string operation for something like this, maybe there is and I'm just uber blind today...
I have a php page, and when the button gets clicked, I would like to change a string of text on that page with something else.
So I was wondering if I could set the id="" attrib of the <p> to id="something" and then in my php code do something like this:
<?php
$something = "this will replace existing text in the something paragraph...";
?>
Can somebody please point me in the right direction? As the above did not work.
Thank you :)
UPDATE
I was able to get it working using the following sample:
Place this code above the <html> tag:
<?php
$existing = "default message here";
$something = "message displayed if form filled out.";
$ne = $_REQUEST["name"];
if ($ne == null) {
$output = $existing;
} else {
$output = $something;
}
?>
And place the following where ever your message is to be displayed:
<?php echo $output ?>
As far as I can get from your very fuzzy question, usually you don't need string manipulation if you have source data - you just substitute one data with another, this way:
<?php
$existing = "existing text";
$something = "this will replace existing text in the something paragraph...";
if (empty($_GET['button'])) {
$output = $existing;
} else {
$output = $something;
}
?>
<html>
<and stuff>
<p><?php echo $output ?></p>
</html>
but why not to ask a question bringing a real example of what you need? instead of foggy explanations in terms you aren't good with?
If you want to change the content of the paragraph without reloading the page you will need to use JavaScript. Give the paragraph an id.<p id='something'>Some text here</p> and then use innerHTML to replace it's contents. document.getElementById('something').innerHTML='Some new text'.
If you are reloading the page then you can use PHP. One way would be to put a marker in the HTML and then use str_replace() to insert the new text. eg <p><!-- marker --></p> in the HTML and $html_string = str_replace('<!-- marker -->', 'New Text', $html_string) assuming $html_string contains the HTML to output.
If you are looking for string manipulation and conversion you can simply use the str_replace function in php.
Please check this: str_replace()
If you're using a form (which I'm assuming you do) just check if the variable is set (check the $_POST array) and use a conditional statement. If the condition is false then display the default text, otherwise display something else.
What is the easiest way to Html encode in PHP?
By encode, do you mean: Convert all applicable characters to HTML entities?
htmlspecialchars or
htmlentities
You can also use strip_tags if you want to remove all HTML tags :
strip_tags
Note: this will NOT stop all XSS attacks
Encode.php
<h1>Encode HTML CODE</h1>
<form action='htmlencodeoutput.php' method='post'>
<textarea rows='30' cols='100'name='inputval'></textarea>
<input type='submit'>
</form>
htmlencodeoutput.php
<?php
$code=bin2hex($_POST['inputval']);
$spilt=chunk_split($code,2,"%");
$totallen=strlen($spilt);
$sublen=$totallen-1;
$fianlop=substr($spilt,'0', $sublen);
$output="<script>
document.write(unescape('%$fianlop'));
</script>";
?>
<textarea rows='20' cols='100'><?php echo $output?> </textarea>
You can encode HTML like this .
Try this:
<?php
$str = "This is some <b>bold</b> text.";
echo htmlspecialchars($str);
?>
I searched for hours, and I tried almost everything suggested.
This worked for almost every entity :
$input = "āžšķūņrūķīš ○ àéò ∀∂∋ ©€ ♣♦ ↠ ↔↛ ↙ ℜ℞";
echo htmlentities($input, ENT_HTML5 , 'UTF-8');
result :
āžšķūņrūķīš ○ àéò ∀∂∋ ©€ ♣♦ ↠ ↔↛ ↙ ℜ℞rx;