PHP:
$var123 = '<div class="mydiv" onclick="document.getElementById("dialog").style.display = "block";">Some text</div>';
echo($var123);
I know this is a total newbie question, but how do I make this work? Thanks!
You can use single quotes in Javascript. Since your string is enclosed in single quotes you also need to escape them in PHP with a backslash \.
$var123 = '<div class="mydiv" onclick="document.getElementById(\'dialog\').style.display = \'block\';">Some text</div>';
echo $var123;
$var123 = 'Some text';
<div class="mydiv" onclick="document.getElementById("dialog").style.display = "block";">
<?php echo $var123; ?>
</div>;
Try this
Related
I have a $_GET[q] from the URL. I am trying to ECHO the search term back into the search box. Sometimes people might submit queries encapsulated in quotes and in these cases the ECHO interprets the search term
ECHO $_GET[q];
as:
ECHO ""search term"";
and as a result I get a blank search box. Search queries with a single quote, like: Peter's house, work fine.
When I use:
mysqli_real_escape_string($conn, $_GET[q])
I only get a backslash in the search box.
How could I populate the search box with a search term encapsulated in double quotes?
You could also use:
echo str_replace('"','',$_GET[q]);
This will of course remove all double quotes, so if they may be valid somewhere in the search term then better might be:
echo str_replace('"','"',$_GET[q]);
Haven't tested this but this might also work:
echo html_entity_decode(htmlentities($_GET[q))
You could use addslashes
like this:
$t = 'peter "pan"';
echo addslashes($t); // outputs: peter \"pan\"
You can try:
$str = "Hello World!";
echo $str . "<br>";
echo chop($str,"");
Ouptput:
Hello World
Explanation:
The chop() function, helps you chop off the quotes anyone might add to string.
You can manipulate as appropriate for your code.
$str = preg_replace( '["|\']','', $_REQUEST['q'] );
echo( $str ); //no double, no single quotes, faster than str_replace when you have to make more than 1 call to str_replace
or...
$str = str_replace( '"','', $_REQUEST['q'] ); //no double quotes, faster than preg_replace when you only make one call to str_replace
echo( $str ); //no double quotes
I have used below code:
$html = '';
$html. = '<br></br>';
$html .= 'Next 50 ';
but my PHP variables are not recognized.
Difference between Double quotes and single quotes
According to this Stackoverflow answer:
Single quoted strings will display things almost completely "as is." Variables and most escape sequences will not be interpreted. The exception is that to display a literal single quote, you can escape it with a back slash \', and to display a back slash, you can escape it with another backslash \\ (So yes, even single quoted strings are parsed).
Double quote strings will display a host of escaped characters (including some regexes), and variables in the strings will be evaluated. An important point here is that you can use curly braces to isolate the name of the variable you want evaluated. For example let's say you have the variable $type and you what to echo "The $types are" That will look for the variable $types. To get around this use echo "The {$type}s are" You can put the left brace before or after the dollar sign. Take a look at string parsing to see how to use array variables and such.
Solution
They are not recognized, because you have put all your string in single quotes (').
You should replace them all with double quotes (").
$html = "";
$html. = "<br></br>";
$html .= "Next 50";
Another solution
Also you have the option of separating your variables from text:
$html = '';
$html. = '<br></br>';
$html .= 'Next 50';
Yet another solution
If you don't want to escape so many double quotes, you may use single quotes instead:
$html = "";
$html. = "<br></br>";
$html .= "<a href='javascript:void(0)' class='test' onclick='get_data(\"$access_token\",1,\"$marketTagId\");'>Next 50</a>";
Try this, it might help you
<?php
$html = '';
$html. = '<br></br>';
$html .= 'Next 50';
?>
Try this
get_data('".$access_token."',1,'".$marketTagId."');
Or
get_data(<?php $access_token ?>,1,<?php $marketTagId ?> );
You need to write '' around your PHP variables otherwise in onclick function they will not worked.
Use below code:-
$html = '';
$html. = '<br></br>';
$html .= "Next 50 ";
Hope it will help you :)
Use the php variables within { and }
$access_token = "1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ";
$marketTagId = "__AAA__B_123";
$html = "";
$html .= "<br></br>";
$html .= "Next 50";
echo htmlentities($html);
your code:
$html. = '<br></br>';
$html .= '<a href= "
change to this:
$html.= '<br></br>';
$html.= '<a href= "
try this:
$html = '';
$html.= '<br></br>';
$html.= 'Next 50 ';
can you expect this:
Hi All Thanks for helping.
This is worked for me :
$html .= '</table>';
$html .= '<br><br>';
$html .= '<a href= "javascript:void(0)" class= "test" onclick= \'get_data("'.$access_token.'","1","'.$marketTagId.'");\'>Next 50 </a>';
Let's say this is my script down here, as you can see I've used multiple " and '. These quotations conflict in ending the current php variable, so it basically sees this:
$message = "<?php echo '<div class="
As a string, whilst the quotation is only to define the class, not to end the variable. I've tried using ' but then it conflicts with the echo, so I'm kinda stuck at the moment.
<?php
$message = "
<?php
echo '<div class="gebruiker">';
$fh = fopen('_gebruiker.txt','r');
while ($line = fgets($fh)) {
echo($line);
}
fclose($fh);
echo '</div>';
?>
";
**MORE PHP CODE HERE**
?>
How can I use multiple quotations in one PHP script without them having conflicts.
If you use single quotes outside, you need to escape all single quotes inside, but can use double quotes and the dollar char without escaping.
If you use double quotes outside, you need to escape all double quotes and dollar chars inside, but can use single quotes without escaping.
If you use a heredoc string, you need to escape dollar chars but can use both single and double quotes without escaping.
If you use a nowdoc string, you do not need to escape anything unless you have FOO; in the string at the beginning of a new line.
So the solution is to use a nowdoc string:
$message = <<<'EOF'
your stuff with " or ' or $ here!
EOF;
Adding a backslash so PHP can recognize just only double quotes or quotes when escaped.
Example:
echo "<div class=\"gebruiker\">";
I suggest using either Heredoc or Nowdoc
Example
$foo = 'test';
// Heredoc
$here = <<<HERE
I'm here, $foo!
HERE;
// Nowdoc
$now = <<<'NOW'
I'm now, $foo!
NOW;
Heredoc will print the contents of $foo when echoed while Nowdoc will simply echo $foo.
In the references I added below you can do more reading up on this subject.
References:
php.net - strings
stackoverflow - advantages of heredoc vs nowdoc
You can escape the quotes with a slash character like so: \"
This should work, you can't open Php tag without closing before.
<?php
$message = '<div class="gebruiker">';
$fh = fopen('_gebruiker.txt','r');
while ($line = fgets($fh)) {
$message .=$line.'<br/>';
}
fclose($fh);
$message.='</div>';
echo $message;
**MORE PHP CODE HERE**
?>
I am trying to create html content in PHP and for onclick event I have included a function named uchat for a div. The function takes a name parameter which is a string.
Like below:
$name = "Php string";
$echostr .= "<div onClick='uchat(\'$name\')'>
</div>";
But, passing a string value like this causes syntax error when div is clicked. Because, single quote is within a single quote. I have tried to escape it, but it still doesnt work.
The error is this:
SyntaxError: illegal character
uchat(\
I am not sure how to escape a string parameter and I have come across this problem so many times, Please help if you have a solution for this.
Thanks.
Escaped single quotes will conflict with outer ones:
$echostr .= "<div onClick=\"uchat('$name')\">
</div>";
Here are 2 clean and simple ways to do this:
1. Classic concat
$name = "Php string";
$str = "<div onClick=\"uchat('" . $name . "')\"></div>";
print $str;
2. Using sprintf (http://us3.php.net/manual/en/function.sprintf.php)
$name = "Php string2";
$str = sprintf("<div onClick=\"uchat('%s')\"></div>", $name);
print $str;
try like this
$echostr .= "<div onClick='uchat("$name")'></div>";
This works:
<?php
$name = "Php string";
$echostr .= <<< EOF
<div onClick="uchat('$name')"></div>
EOF;
echo $echostr;
?>
Output:
<div onClick="uchat('Php string')"></div>
In order to avoid escaping all double quotes and to make the html code more readable you can use EOF.
See it action : http://ideone.com/vRCCVH
simple problem baffling me...
i have a function:
function spitHTML() {
$html = '
<div>This is my title</div>\n
<div>This is a second div</div>';
return $html
}
echo $spitHTML();
Why is this actually spitting out the \n's?
Backslashes used in single quote strings do not work as escape characters (besides for the single quote itself).
$string1 = "\n"; // this is a newline
$string2 = '\n'; // this is a backslash followed by the letter n
$string3 = '\''; // this is a single quote
$string3 = "\""; // this is a double quote
So why use single quotes at all? The answer is simple: If you want to print, for example, HTML code, in which naturally there are a lot of double quotes, wrapping the string in single quotes is much more readable:
$html = '<div class="heading" style="align: center" id="content">';
This is far better than
$html = "<div class=\"heading\" style=\"align: center\" id=\"content\">";
Besides that, since PHP doesn't have to parse the single quote strings for variables and/or escaped characters, it processes these strings a bit faster.
Personally, I always use single quotes and attach newline characters from double quotes. This then looks like
$text = 'This is a standard text with non-processed $vars followed by a newline' . "\n";
But that's just a matter of taste :o)
Because you're using single quotes - change to double quotes and it will behave as you expect.
See the documentation for Single quoted strings.
Change ' to " :) (After that, all special chars and variable be noticed)
$html = "
<div>This is my title</div>\n
<div>This is a second div</div>";