This question already has answers here:
Escaping quotation marks in PHP
(7 answers)
Closed 1 year ago.
This is my line of code in php which shows the page numbers, which are automatically generated based on the content in the table. Since all the page numbers have the same color I want to display the current active page, I wanted to do it with a condition in the class but due to the anchor tag already being in the "" of echo, and the class starting with ', once i put the ' for condition, the class is ended sooner and the condition is not made.
Is there a way to bypass this or use something else for inside of the ' '?
Or is there another way to show the current active link?
echo "<a class='{% if page.url. =='?page=$x' %}active{% endif %}' href='?page=$x'> $x </a>";
And if anyone needs some more code, this is the whole php code for printing all the pages based on the number of items in the table
for($x = 1; $x <= $totalPages + 1; $x++){
?>
<div class='page'>
<?php
echo "<a class='{% if page.url. =='?page=$x' %}{% endif %}' href='?page=$x'> $x </a>";
?>
</div>
<?php
}
Use a backslash inside echo quotes.
echo "<a class=\"myclass\">";
Related
I have an issue where I'm showing boxes of some posts from my database in a foreach loop.
The length of the post title affects the design. For example if one post has a long title next to one with a short title, it will push the link i have below down. This makes it look uneven.
Therefor I'm trying to write a function that checks if the length is too short, it should insert a line break.
This is what I have so far.
function insert_line_break($text){
if (strlen($text) < 10 ) {
echo "<br>";
}
}
<?= insert_line_break($entry["title"]) ?>
However that seems to replace the title with a linebreak.
What am I missing?
You have missed to echo the text itself.
function insert_line_break($text){
if (strlen($text) < 10 ) {
return "<br>";
}
}
<?php echo $entry["title"] . insert_line_break($entry["title"]); ?>
Note:
I changed the function to return a value instead of echoing it to the output, so it will be much more reusable in the future.
And I expanded the short tag <? to <?php and made the = to verbose echo which is much clearer and readable way of coding.
And of course I closed the line with semicolon ; as it should be.
EDIT:
<?php echo $entry["title"] . insert_line_break($entry["title"]); ?>
echo prints the content of $entry["title"] and then ask function insert_line_break($entry["title"]) to decide whether it contains string shorter than 10 characters, if so it returns <br> that is echoed. And that's it.
This question already has answers here:
Reference - What does this error mean in PHP?
(38 answers)
PHP parse/syntax errors; and how to solve them
(20 answers)
Closed 5 years ago.
for my issue i'll try to be as brief as possible
what am trying to do is reference a page with a specific id in the HTML anchor link with PHP as the below
<body>
<?php $linkName = "Second Page"; ?>
<?php $id = 5; ?>
<?php echo $linkName?><br>
and it works fine
now what am trying to do is to make the $id part more dynamic by making looping the number from 1 to 10 and also providing 10 links
the code is
</head>
<body>
<?php $linkName = "Second Page"; ?>
<?php $id = 5; ?>
<?php
for ($i=0; $i < 10 ; $i++) {
echo "<a href='secondPage.php?id=<?php echo $i;?'>Link1</a>";
};
?>
</body>
however what i did notice as the below images indicates when i hover on the links i noticed that i refer to a strange link
and when i cliched on it it takes me to the following link with an id that i did not want as below
http://localhost/PHP_Course/secondPage.php?id=%3C?php%20echo%201;?
i tried researching the subject and i tried escaping the quotation but it does not seem to resolve the problem
Any help please ??
<?php and ?> tags indicate to the PHP preprocessor that anything inside them is code and needs to be parsed, everything outside is just text PHP doesn't touch.
Inside the <?php tag, "<?php" string has no special meaning, so is printed. You do not need to open and close tags all the time, try this:
</head>
<body>
<?php
$linkName = "Second Page";
$id = 5;
for ($i = 0; $i < 10 ; $i++) {
echo "<a href='secondPage.php?id=$i;'>Link1</a>";
};
?>
</body>
You're echoing a string in PHP, and using <?php... inside that string.
Solution:
echo "<a href='secondPage.php?id=" . $i . "'>Link1</a>";
id=$i will also work, because you can include variables directly in double-quoted strings.
You're echoing the PHP code itself as a string. You don't need to put PHP code inside of PHP code. Just concatenate the values you want to echo:
echo 'Link1';
because you already started an echo statement so you don't need to add another PHP starting and ending tags. just check my code below and try it.
<?php
for ($i=0; $i < 10 ; $i++) {
echo "<a href='secondPage.php?id=".$i."'>Link1</a>";
} ;
?>
This question already has answers here:
The 3 different equals
(5 answers)
Closed 6 years ago.
So, I have a snippet of php code which turns the link on a navigation bar green if the variable is right. However, no matter what all links on the bar are green
echo "
<li ";
if ($page = 'slither');{echo"style='background-color:#4CAF50;'";};
echo " class='link'><a href='?page=slither'>Slither</a></li>
<li ";
if($page = 'agar');{echo"style='background-color:#4CAF50;'";};
echo " class='link'><a href='?page=agar'>Agar</a></li>
<li ";
if ($page = 'home');{echo"style='background-color:#4CAF50;'";};
echo " class='link'><a href='?page=home'>Home</a></li>
You are using = which assign value. You have to compare using == :)
This question already has answers here:
How can I combine two strings together in PHP?
(19 answers)
Closed 7 years ago.
Hi I am trying to produce a <td> which also contains an <a> link which will redirect to a function in my controller which also echos the id of my data. Here is my code so far:
<?php
if ($this->session->userdata("username")==$info->U_username) {
echo '<td>EDIT</td>';
}
?>
This code produces an error Disallowed Key characters. Any help or comment is highly appreciated.
For concatenating strings PHP has . operator.
echo '<td>EDIT</td>';
You need to add the result of base_url() to the string you want to output, e.g.:
echo '<td>EDIT</td>';
Either you need to concatinate instead to use php multiple time .use like this
<?php
if ($this->session->userdata("username")==$info->U_username){
echo "<td><a href='".base_url()."'/gamestalker/edit_content/'".$info->C_id."'>EDIT</a></td>";
}
?>
or don't include html into php tags like this
<?php
if ($this->session->userdata("username")==$info->U_username){ ?
<td>EDIT</td>
<? }
?>
You need string concatenation. In PHP you use . for that.
Also codeigniter's base_url can take an argument:
<?php
if ($this->session->userdata("username")==$info->U_username){
echo '<td>EDIT</td>';
}
?>
This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
How to get useful error messages in PHP?
Ive started on part of my new year resolution and decided to learn php, as part of it im trying to parse in an xml feed, and echo out the name of the events wrapped in <a> tags linking them back to the events page on the xml feed's site.
I think ive got it all in but i cant seem to see why this isnt working im just getting a blank page, if some one could point me in the right direction it would be much appreciated, cheers
<?php
// F1 W/H xml feed
$xml = simplexml_load_file('http://whdn.williamhill.com/pricefeed/openbet_cdn?action=template&template=getHierarchyByMarketType&classId=5&marketSort=HH&filterBIR=N');
foreach ($xml->response->williamhill->class->type as $type) {
$type_attrib = $type->attributes();
echo "<h2>".$type_attrib['name']."</h2>"; //Title - in this case f1 championship
} ?>
<ul>
<?php
foreach($type->market as $event) {
echo "<li>";
echo "<a href="$event_attributes['url']">";
echo $event_attributes['name'];
echo "</a>";
echo "</li>";
}
?>
</ul>
echo "<a href="$event_attributes['url']">";
try changing that line to
echo "<a href=\"".$event_attributes['url']."\">";
The Php parser is pretty funny about this. Usually you pick one and just stick to it, or use both single quotes and double quotes as you please. Just remember that strings with double quotes are parsed for variables.
$hello = "Hello";
echo "$hello master";
is the same as
$hello ="Hello";
echo $hello.' master';
When you are testing your PHP scripts, you'll find it useful to switch on errors - then PHP will actually tell you why it isn't showing you anything:
error_reporting(E_ALL);
Normally you will have missed a ; or mis-typed a variable name.
in your case the error is here:
echo "<a href="$event_attributes['url']">";
You have accidentally ended the string with a double quote, so PHP thinks the string ends here:
echo "<a href="
This is where using single-quotes can be very handy because your double quotes won't then close the string.
echo '<a href="' . $event_attributes['url'] . '">';
The main difference between single and double quotes in PHP is that double quotes has special clever parsing rules and single quotes doesn't. For example:
$myVar = "BLAH";
echo "Example $myVar"; // Example BLAH
echo 'Example $myVar'; // Example $myVar
In your unordered list, you should use a dot to concatenate your string, and escape your double quotes like this:
echo "<a href=\"".$event_attributes['url']."\">";
Instead of
echo "<a href="$event_attributes['url']">";
Your example throws and error because you haven't used proper string concatenation. However, even with correct concat, it would render as <a href=http://someurl>, and you'd need to add the double quotes according to html standard. Hence you have to double quote.
if you want to not be troubled by having to switch between using a ' or a " then i suggest using the php alternative syntax php alternative syntax
with the given code it would look like
<?php
// F1 W/H xml feed
$xml = simplexml_load_file('http://whdn.williamhill.com/pricefeed/openbet_cdn?action=template&template=getHierarchyByMarketType&classId=5&marketSort=HH&filterBIR=N');
foreach ($xml->response->williamhill->class->type as $type) {
$type_attrib = $type->attributes();
echo "<h2>".$type_attrib['name']."</h2>"; //Title - in this case f1 championship
} ?>
<ul>
<?php foreach($type->market as $event):?>
<li>
<a href="<?php echo $event_attributes['url']; ?>">
<?php echo $event_attributes['name']; ?>
</a>
</li>
<? endforeach;?>
</ul>
one advantage this would bring is that it would produce cleaner code since you can clearly distiguish your php code from your html which is the presentational part at the price writing all those other <?php ?> and as what others would claim a performance degradation. the choice is yours
Change
echo "<a href="$event_attributes['url']">";
for
echo "<a href=".$event_attributes['url'].">";
You are missing the periods in your second echo, where you have your $event_attributes['url']
<?php
foreach($type->market as $event) {
echo "<li>";
echo "<a href=".$event_attributes['url'].">";
echo $event_attributes['name'];
echo "</a>";
echo "</li>";
}
?>
I would recommend you to enable your error log, it would allow you to know the line with problems in any of your scripts.