I cant get this to work and its driving me mad, pls help
echo "<a href='#' onclick='javascript:$.jGrowl
(\"".$_SESSION['product_description'][$i]."\")' >?</a>";
the problem comes down to the 'product_description' - those single ' marks are breaking it, what should i do sigh
EDIT: if i replace the .$_SESSION['product_description'][$i]. with a bunch of charecters it works, its not a problem with anything but PHP and those ''
Chances are the real problem lies with the $.jGrowl. Within double quotes, PHP tries to parse found variables. e.g.
$foo = 'foo';
echo "This is foo: $foo"; // output: This is foo: foo
So, to avoid this you need to escape the $ using \$ within the string...
echo "...\$.jGrowl..."
See this demo.
Keep this here for reference:
Escape them with a backslash, like you would with double quotes. e.g.
// which ever quote is used to encapsulate the string
// must be escaped within the output.
echo 'Hello, \'world!\''; // output: Hello, 'world!'
echo "Hello, \"world!\""; // output: Hello, "world!"
// but, if you use the opposite quote, it does not need
// to be escaped for output.
echo 'Hello, "world!"'; // output: Hello, "world!"
echo "Hello, 'world!'"; // output: Hello, 'world!'
See the PHP Docs on strings for more information and what characters need escaping.
Are you missing your opening "?
echo "<a href='#' onclick='javascript:$.jGrowl(\"".$_SESSION['product_description'][$i]."\")' >?</a>";
Make it
echo "<a href='#' onclick='javascript:$.jGrowl(\"".$_SESSION['product_description'][$i]."\")' >?</a>";
Try:
echo "<a href='#' onclick='javascript:\$.jGrowl(\"".str_replace('"','\"',$_SESSION['product_description'][$i])."\");' >?</a>";
You need to ensure you are escaping any double quotes within the value...
This one works for me:
echo "<a href=\"#\" onclick=\"javascript:$.jGrowl('".$_SESSION['product_description'][$i]."')\" >?</a>";
Related
i have this problem i hope some of you can help me with. I try to make a html link that get the link from my database.
echo "<p><pre><a href=$Feed['socialfacebook']><img src=facebook-24.png></a></pre></p>
You need to put the link in '".$variable ."' and the image src should be in ' ', too.
echo "<p><pre><a href='".$Feed['socialfacebook']."'><img src='facebook-24.png'></a></pre></p>";
Double-quoted strings don't work with array elements quite like that. You should close and concatenate the strings.
echo "<p><pre><img src=facebook-24.png></pre></p>"
You might also want to put some quotes on your attributes.
Close your string with a double quote and end your statement with a semi-colon,
When getting array elements inside a string literal like you're doing, leave out the key quotes,
Use single quotes around your attribute in case of any spaces:
echo "<p><pre><a href='$Feed[socialfacebook]'><img src=facebook-24.png></a>";
Eval.in
u need to put the variable $Feed['socialfacebook'] in " . $Feed['socialfacebook'] ."
echo "<p><pre><a href=" . $Feed['socialfacebook'] . "<img src=facebook-24.png></a></pre></p>";
and don't forget the ;
Shouldn't it be:
echo "<p><pre><a href='$Feed["socialfacebook"]'><img src=facebook-24.png></a>";
Don't forget that is href="".
<?php echo nl2br($valueu->getarea($rows['province'].'|'.$rows['city'].'|'.$rows['area'],' ')); ?></td>
how to put a line break in between city and area when outputted to a browser.
Thanks
Use \n. Just add it with the sting like this I."\n" like pie.
You can also use nl2br like this echo nl2br("One line.\nAnother line.");
Try double quote "\n".
If you use single quote '\n', PHP will just interpret as a literal \n, but within double quote, it will parse it as an escape sequence (newline character) and echo it. More about strings here.
echo nl2br('Hello \n world');
// -> Hello \n world
echo nl2br("Hello \n world");
// -> Hello <br /> world
In a browser, you may need to use "<br/>" instead of a newline "\n".
echo($valueu->getarea($rows['province'].'|'.$rows['city'].'<br />'.$rows['area'],' '));
Something like that?
I have a PHP function that in echoing out a string, is losing some of the characters passed in it. Any reason why this would be happening?
I pass: $vhkvdov#jqlydk#p*_L#1qrlws|ufqh#KWLZ#1hwdgsX
It returns: #jqlydk#p*_L#1qrlws|ufqh#KWLZ#1hwdgsX
This is my PHP code:
<?php
function display($str) {
echo $str;
}
display("$vhkvdov#jqlydk#p*_L#1qrlws|ufqh#KWLZ#1hwdgsX");
?>
If you have $ in you string use single quotes:
display('$vhkvdov#jqlydk#p*_L#1qrlws|ufqh#KWLZ#1hwdgsX');
Otherwise PHP would try to use $vhkvdov as a variable name and replace it by its contents, what will be nothing as I expect that the variable is not set
PHP reference on strings
Note: During development I would set error_reporting in php.ini to
error_reporting=E_ALL | E_NOTICE;
and
display_errors=On
or
log_errors=On
error_log=PATH/TO/YOUR/LOG.file ; make sure this is writable by the web server
To see an error message like :
PHP Notice: Undefined variable: vhkvdov in
The problem is that you are using double quotes, which make PHP interpret the inner string for PHP variables.
Consider the following example:
$friend = "foo";
echo "hello $friend";
// Output: hello foo
Use single quotes instead if you do not want PHP to interpret the string contents.
$friend = "foo";
echo 'hello $friend';
// Output: hello $friend
Take a read of this to help clarify why this is happening:
http://php.net/manual/en/language.types.string.php
Specifically:
When a string is specified in double quotes or with heredoc, variables
are parsed within it.
This is whats happening with your code:
If a dollar sign ($) is encountered, the parser will greedily take as
many tokens as possible to form a valid variable name. Enclose the
variable name in curly braces to explicitly specify the end of the
name.
Here is an example:
<?php
$juice = "apple";
echo "He drank some $juice juice.".PHP_EOL;
// Invalid. "s" is a valid character for a variable name, but the variable is $juice.
echo "He drank some juice made of $juices.";
?>
The above example will output:
He drank some apple juice.
He drank some juice made of .
When you use single quotes, you will avoid this issue as the string taken litterally:
// Outputs: This will not expand: \n a newline
echo 'This will not expand: \n a newline';
// Outputs: Variables do not $expand $either
echo 'Variables do not $expand $either';
Hi i have been using this php echo statement
echo "<a href = 'message_delete_script_outbox.php?id=".$row['id']."'"."onclick='return
confirm(/Are you sure, you want to delete?/)'>Delete</a>";
The statement is working i am seeing this message /Are you sure, you want to delete?/ instead of this Are you sure, you want to delete?
Your quote nesting is a little messed up. Try to follow these rules:
Outer quote = " (This marks the beginning and end of the string)
Inner quote = \" (Escaped as to not flag "beginning/end of string")
Third-tier quote = ' (Literal quote)
Fourth-tier quote = \' (Literal quote that will be generated as an escaped outer quote)
Result:
echo "<a href=\"message_delete_script_outbox.php?id=".$row['id']."\"onclick=
\"return confirm('Are you sure, you want to delete?')\">Delete</a>";
More info about quote nesting: http://blog.opensourceopportunities.com/2007/10/nested-nested-quotes.html
You enclose the message in quotes, and those quotes need to be escaped to avoid confusing the PHP script:
echo "<a href = 'message_delete_script_outbox.php?id=".$row['id']."'"."onclick='return
confirm(\"Are you sure, you want to delete?\")'>Delete</a>";
Just add double quotes and escape them
echo "<a href = 'message_delete_script_outbox.php?id=".$row['id']."' onclick='return confirm(\"Are you sure, you want to delete?\")'>Delete</a>";
I am not sure if you added a new line when you posted here, but you should know you cannot have that script on 2 lines.
This question already has answers here:
What is the difference between single-quoted and double-quoted strings in PHP?
(7 answers)
Closed 8 years ago.
in HTML
we can
face='Tahoma'
face="Tahoma"
and in PHP
$name = "Junaid";
$name = 'Junaid';
$names = array('Junaid','Junaid','Junaid');
$names = array("Junaid","Junaid","Junaid");
now all these statements are correct with single or double quotes but
what difference does it make
which is the preferred method
what types of quotes to use where
which one of the following is correct
$link = "www.anyLINK.com"
echo "<a href=' ". $link ." '>Click Here</a>"
echo "<a href= ". $link ." >Click Here</a>"
The difference between single and double quotes in PHP is that PHP will read variables inside of double quotes but not single. For example:
<?php
$variable = "test";
echo "Can you see this $variable"; // Can you see this test
echo 'Can you see this $variable'; // Can you see this $variable
?>
The single quote will be read literal, where was double will attempt to replace the $variable with it's value.
Optimization Differences
As pointed out in the comments below, single quotes tend to be faster than double. In a quick benchmark, double quotes with any $'s escaped is the fastest vs single and double with and without $variables in the string. See http://codexon.codepad.org/54L3miwN
See http://php.net/manual/en/language.types.string.php.
In particular, variables are expanded in double quotes:
$foo = 42;
print('foo is $foo'); // foo is $foo
print("foo is $foo"); // foo is 42
In HTML, it doesn't matter at all.
In PHP, it does. Using the single-quotes prevents variables from being interpreted; for instance, echo '$foo'; will print "$foo". Not the variable, just the characters. Also, you have to escape single-quotes within single-quotes, but not single-quotes within double-quotes, etc. I answered this question before here.
As for your second question, they're both wrong. It should be:
echo "<a href='". $link ."'>Click Here</a>"
or, better yet:
echo "<a href='$link'>Click Here</a>"
or, better still, a templating engine like Smarty TPL.