Please help me with this problem.
<?php echo $userRow2['description']; ?>
It seems that the PHP variable is incompatible with html link :(
so I want to know what is the proper method.
TIA...
echo those variables there like the following.
<?php echo $userRow2['description']; ?>
Please use a template engine for these kinds of things...
Use one of:
smarty
twig
mustache
php-view
These will brighten up your day and remove the complexity out of your html files
You can also pass all your GET params in an associative array, and use:
http_build_query($params)
so:
or in your way:
<?php echo $userRow2['description']; ?>
You can also build html/php mix with heredoc:
http://www.hackingwithphp.com/2/6/3/heredoc
it seems that the php variable is incompatible with html link
Well, PHP runs server-side. HTML is client-side. So there's no way for client-side code to interpret PHP variables.
You need to enclose server-side code in <?php ?> tags in order for it to execute on the server (like you already do elsewhere). Otherwise the server just treats it as any other HTML and returns it to the browser. Something like this:
<?php echo $userRow2['description']; ?>
As you can see, that gets a bit messy. But you can put the whole thing in one echo statement:
echo "$userRow2[description]";
Notice how the double-quotes needed to be escaped in that one, but since the whole thing was a double-quoted string the variables contained therein would expand to their values.
There are readability pros and cons either way, so it's up to you how you want to present it.
you should use this
<?php echo $userRow2['description']; ?>
or
<?=$userRow2['description']?>
You can also use Here Doc Syntax
<?php
//test variables
$inst_id = 1;
$description = "Test 1";
$eof = <<<EOF
$description
EOF;
//test output
echo $eof;
http://php.net/manual/en/language.types.string.php#language.types.string.syntax.heredoc
Related
How would one go about showing PHP code on user end. Sort of like w3School does?
Having lets say a grey area div, and then showing the code in there without activating it?
You can use html entities <?php in the html it will be rendered as <?php
You can use htmlspecialchars to encode your code to use html entities.
Use <pre> or <code> tags to wrap your code.
Take a look at http://php.net/manual/en/function.highlight-string.php to further see how you can make the code look pretty.
Since passing a large block of code to highlight_string() can be messy, you may want to look at output buffering in combination with highlight_string to output colorized php code.
Something like:
<?php
ob_start();
?>
phpinfo();
echo "this echo statement isn't executed";
<?php
$code = ob_get_clean();
highlight_string($code);
?>
Simply you can use following code to display php code on webpage.
highlight_string("<?php print('This is php code.'); ?>");
It will give output like
<?php print('This is php code.'); ?>
The first step is to not wrap that code in PHP tags. So instead of this:
<?
var sample = "code";
?>
You would have this:
var sample = "code";
It's not the code itself which triggers the server-side compile from the PHP engine, it's the tags which indicate to that engine what blocks of the file are code and what are not. Anything that's not code is essentially treated as a string and output to the page as-is for the browser to interpret.
Once you're outputting the code, it's then a matter of formatting it. The old standard is to wrap it in pre tags to get rid of HTML-ish formatting:
<pre>
var sample = "code";
</pre>
You can also apply CSS style to the pre tags (or any other tags you want to use for displaying code, such as div) as you see fit.
There are also very useful code syntax highlighting plugins and tools to make the code a lot "prettier". Google-code-prettify often comes highly recommended.
Typically this is done by showing code within <pre> or <code> tags.
You can use this template........
######################################################################
echo "<h2><br>Source Code of ".basename((string)__FILE__) . "</h2><hr>";
show_source(__FILE__);
echo "<hr>";
echo "<h2>Output of ".basename((string)__FILE__) . "<hr></h2>";
#######################################################################
It will show the source code and output following.
use the header function of php, this will rea
<?php
header("content-type: text/plain");
?>
The PHP code will just be a string that you can echo or print onto the page, no different than any other data you want PHP to display for you. If you want to keep the formatting (ex. the indentation), put it inside a <pre><code> block.
Ex:
$php_code = '<?php $foo = bar; ?>';
echo "<pre><code>$php_code</code></pre>";
Ay guys,
I do know two possibilites to display PHP in HTML:
<?php function(); ?> or the shorter method <?= function(); ?>
But I often see something like {METHOD} or {OUTPUT} in the HTML part of bigger scripts f.e.:
<div class="test">{OUTPUT}</div>
In my opinion this is a way tidier. Could somebody tell me more about this?
I have used php to generate html using the echo function and have used php inside html too.(If this clarifies your doubt in anyway)
echo $projectname; inside html file tags
echo the html file
Cheers :)
When echoing data in HTML without a template engine, short tags are preferred as they look cleaner, and are easier to read. They're great when using control structures too: http://php.net/manual/en/control-structures.alternative-syntax.php
For short tags to work short_open_tag needs to be enabled.
The example you shown with the curly brackets is usually specific to a template engine such as Twig.
you can use this method only with the function ECHO with double quotes :
1 - this works
$name = 'Mark';
echo "<div>GoodMorning {$name}</div>";
2 - this does not work
$name = 'Mark';
echo '<div>GoodMorning {$name}</div>';
I've been trying to get this to work for a while now, and have yet to find a solution online that works. I'm still fairly new to PHP so forgive me if the question is dumb.
I'm using a PHP document to read data from a text file. That PHP document is called as a script to the HTML document which actually displays all the information on the webpage.
So to my understanding, I have to use echo "document.write("")"; to output stuff, which works fine.
However, when I try using variables, it doesn't seem to work. For example I'm trying to do:
<?php
$test = "Hello";
echo "document.write("$test")" ?>
Am I missing something?
The specific reason your code is not working is your use of quotes. You can't enclose double-quotes within double quotes unless you escape them first - like this:
echo "document.write(\"$test\")" ?>
However, there is a deeper problem here. You don't need the Javascript at all. You could just do:
echo $test;
Lastly, document.write() has all sorts of unwanted side effects. If really do need that then you probably want to manipulate the DOM in Javascript directly, but that's a different question.
Just use echo to do what you want:
<?php
$test = "Hello";
echo $test;
?>
Value of $test will be outputted to the html.
document.write only works in JavaScript, try just use echo
If you want document.write to add the value of the $test variable in JavaScript, you are almost on the right track, but need to escape your quotation marks:
echo "document.write(\"$test\")";
because document.write(); is for javascript,to use variable just use variable name only in echo
I don't what you are trying to do, if you want to just output a text into a php usse echo
Your wrote it's incorrect
<?php
$test = "Hello";
echo "document.write("$test")";
?>
Correct way
<?php
$test = "Hello";
echo $test;
?>
I think you need quotes around the string in the document.write :
<script>
<?php
$test = "Hello";
echo "document.write('" .$test ."');";
?>
</script>
Which becomes :
<script>
document.write('Hello');
</script>
Which in turn displays this on the page :
Hello
If you want output into HTML then you can simply use echo function of PHP.
<?php
$test = "Hello";
echo "<script>document.write('" .$test ."')</script>";
?>
This is probably a very simple one to be answered...
I have a piece of code which I need to pull a certain piece of information.
<?php echo $this->getLayout()->createBlock('cms/block')->setBlockId('XXXX')->toHTML();?>
For this to work I need the XXXX part to pull the result of the following query:
<?php echo $_product->getAttributeText('warranty') ?>
So the output from the above query will then be the information needed to go in to XXXX.
This markup is completely wrong below but should demonstrate the idea I am trying to achieve:
<?php echo $this->getLayout()->createBlock('cms/block')->setBlockId('<?php echo $_product->getAttributeText('warranty') ?>')->toHTML();?>
You just have a redundant PHP opening <?php inside the code. You are already in PHP context so you can do that call directly.
<?php echo
$this->getLayout()->createBlock('cms/block')->setBlockId($_product->getAttributeText('warranty'))->toHTML();?>
However, this is quite complicated and difficult to debug. I would split it in several lines and use variables... remember that you can do it in that context, you are not bound to do everything in one line only :)
Maybe as simple as:
<?php echo $this->getLayout()->createBlock('cms/block')->setBlockId($_product->getAttributeText('warranty'))->toHTML();?>
If not then I would very much like to know what kind of var (array, int, string, double etc) the setBlockId function needs and what $_product->getAttributeText returns.
echo $this->getLayout()->createBlock('cms/block')->setBlockId($_product->getAttributeText('warranty'))->toHTML();?>
<?php
echo $this->getLayout()
->createBlock('cms/block')
->setBlockId($_product->getAttributeText('warranty'))
->toHTML();
?>
I have PHP variables to place within an included HTML file. What's the best way of executing this?
//contents of file1.php
$variable1 = "text 1";
$variable2 = "text 2"
$newContent = include('file2.php');
echo $newContent;
//contents of file2.php
<p>standard HTML with PHP... <strong><?=$variable1?></strong></p>
<p><?=$variable2?></p>
This general method is considered OK but the actual code here doesn't work. Do I use file_get_contents() or include(), how do I execute the PHP within the includes file to output the correct contents?
Should I be using something like HTML>>>
What you're doing is fine, and you'll find that most people use the same exact method. I personally wouldn't use PHP short tags (some hosts don't enable it), but that's a matter of preference.
Edit: As per your edit, it seems like you don't have short tags enabled. Check your ini (http://php.net/manual/en/ini.core.php). But you really shouldn't be using short tags, because as clownbaby mentions, PHP 6 will deprecate them. Even if you don't care about future proofing your code, they're still troublesome (which is evident because your code isn't working). Switch to <?php echo $variable1; ?> and you'll be fine.
I think your code is fine, even most frameworks use it...
regarding the use of short tags, some servers do not allow it, so here is a workaround I use:
if ((bool) #ini_get('short_open_tag') === FALSE){
echo eval('?>'.preg_replace("/;*\s*\?>/", "; ?>", str_replace('<?=', '<?php echo ', file_get_contents("path/to/file2.php"))));
}else{
$newContent = include("path/to/file2.php");
echo $newContent;
}
$newContent = include('file2.php');
echo $newContent;
You shouldn't need to echo anything here. Just including the PHP file should execute any code inside it and spit out the interpolated template to the page. Whilst there is such a thing as returning a value from include, it's a rarely used feature you can generally ignore.
As ekhaled said, you may need to enable short tags or replace them with the always-supported <?php ... ?> processing-instruction-style syntax.
However, it's important to htmlspecialchars every text string when including it in HTML, or you've got a potential XSS security hole.
<?php
function h($text) {
echo(htmlspecialchars($text, ENT_QUOTES));
}
?>
...
<p>standard HTML with PHP... <strong><?php h($variable1) ?></strong></p>
<p><?php h($variable2) ?></p>