Im trying to echo some JSON Data. The problem is the data contains variables but my code isn't putting the variables into the string.
Heres my code:
$status = $row['Status'];
$priority = $row['Priority'];
echo '{"status":"$status","priority":"$priority"}' ;
this php is echoing
{"status":"$status","priority":"$priority"}
when I need to echo
{"status":"Completed","priority":"High"}
for example. How can I fix this?
Just use json_encode function
echo json_encode($row);
json_encode($row)
Will give you the desired output.
The problem here is that PHP does not substitute variables in single quotes, only in double quotes (see http://php.net/manual/en/language.types.string.php#language.types.string.syntax.double).
For example:
$test = "a";
echo 'This is $test test and'.chr(10);
echo "this is $test test.".chr(10);
/*
Creates the following output:
This is $test test and
this is a test.
*/
Note: chr(10) creates the new line.
And the solution to your problem is to use json_encode() and json_decode() as other people have suggested already.
http://php.net/manual/en/function.json-encode.php
The problem is in your single quotes, PHP get all vars inside as strings, so break the string as follow:
echo '{"status":"'.$status.'","priority":"'.$priority.'"}' ;
On top of that, you can use json_encode() in order not to build your JSON object manually.
Related
I'm trying to replace the value from array.
$row= array("id"=>"35", "name"=>"test","first_name"=>"noor","last_name"=>"fathima");
// Eval Statement -
$row = $row['first_name'].' '.$row['last_name'];
eval("\$row = \"$row\";");
//This should return noor fathima
I am unable to replace the values. Can anyone please help me out?
Not a huge fan of eval() as it can be a pain, but the main thing is to get all of the right $'s and quotes escaped/unescaped etc. To get round this I've put the expression into single quotes as this stops any interpretation - until you eval() it...
$row= array("id"=>"35", "name"=>"test","first_name"=>"noor","last_name"=>"fathima");
eval('$result = $row["first_name"]." ".$row["last_name"];');
echo $result;
gives...
noor fathima
Why you need eval() here because it is already returning what you want as output?
<?php
$row= array("id"=>"35", "name"=>"test","first_name"=>"noor","last_name"=>"fathima");
echo $row['first_name'].' '.$row['last_name'];
?>
DEMO: https://3v4l.org/7KTH0
I trying get another variable in php, from existing text but I have issue to do this.
When I echo $address_number; I get list3.
So I need to get variable $list3 and I need echo $list3; after that.
Something like
<?php echo $(echo $address_number;); ?>
But this is not possible. Any solutions?
Solution:
$address_number = $address.$number;
$iframe_url ="$address_number";
<?php echo $$iframe_url; ?>
Thanks everybody!
Use variables variables and the way they work is like so
$adress_number = "list3";
$list3 = "some value";
echo $$address_number;
the above code will output 'some value', what it's doing is using the value of the variable $address_number and treating it as a variable name, so it will look for that variable name and print it's value
I have a variable in php
$test = "This is a string
It has multiple lines
there are three total" ;
(Output from a text area)
I want to pass this variable to a javascript function
I have write this in my php file
<?php echo "<script language=javascript>convert('$test');</script>"; ?>
but this makes an error "Unterminated string literal" How can i solve this issue ??
Try
$test = "This is a string\nIt has multiple lines\nthere are three total";
<script>convert(<?php echo json_encode($test); ?>);</script>
Try this:
$test = str_replace($test, "\n", "\\n");
I have a string like this :
oauth_token=1%2F7VDUGD4tKIqSu4jX4DoeCRD1KbqqgTxFnFFliVgbSss&oauth_token_secret=Rk%2FwejMIg6t%2BFphvRd%2BZ5Wkc
How can I extract the two variables oauth_token and oauth_token_secret from the about string using PHP
NOTE: this is not coming from the URL( we can do that using $_GET)
Thank YOU
Use parse_str() for parsing query string parameters.
// Extract into current scope, access as if they were PHP variables
parse_str($str);
echo $oauth_token;
echo $oauth_token_secret;
// Extract into array
parse_str($str, $params);
echo $params['oauth_token'];
echo $params['oauth_token_secret'];
You may wish to urldecode() the variables after you've extracted them.
try this
$text = "oauth_token=1%2F7VDUGD4tKIqSu4jX4DoeCRD1KbqqgTxFnFFliVgbSss&oauth_token_secret=Rk%2FwejMIg6t%2BFphvRd%2BZ5Wkc"
;
$i=explode('&',$text);
$j=explode('=',$i[0]);
$k=explode('=',$i[1]);
echo $j[0]."<br>";
echo $j[1]."<br>";
echo $k[0]."<br>";
echo $k[1]."<br>";
1, split the two parts of the $string,
$str_array = explode('&',$string);
2, get the part after the "=" sign, so for the oauth_token part:
$oauth_token_array = explode('=',$str_array[0]);
$oauth_token = $oauth_token_array[1];
EDIT: ignore this, it's definitely verbose. BoltClock's the solution.
The best way (most reusable) is to use a function which returns an array similar to $_GET.
edit There is already a function for this: http://www.php.net/manual/en/function.parse-str.php This will work with array get values too.
$values = array();
parse_str($query_strng, $values);
Quite an ugly function, why can't it just return the array of values. It either stuffs them into individual variables or you need to pass in a reference. Come on php, you can do better. /rant
please see: http://pastebin.com/5za3uCi1
I'm quite new to php and I'm editing the ventrilo status script. What I'd like it to do is that it stores everything in one big variable for easy parsing instead of using separate echo's. Can someone tell me how I can accomplish this?
Thanks,
Dennis
You can use the output buffer and get the contents of it:
ob_start();
echo 'foobar';
$contents = ob_get_contents(); // now contains 'foobar'
ob_end_clean();
declare a variable at the beginning, say $data or whatever. then, replace the echo calls:
echo "hello";
with this:
$data .= "hello";
then return the $data variable at the end of the function.
Instead of the echo, you can use a simple affectation :
$request = "CVentriloStatus->Request() failed. <strong>$stat->m_error</strong><br><br>\n";
But you'll soon have issues to manage multiple variables.
You could create an object to handle and store your information, but If you need something easy to set up and simple to operable, I'd go for arrays :
$ventriloStatus = array();
$ventriloStatus['requestObj'] = $stat->Request();
$ventriloStatus['requestMsg'] = "CVentriloStatus->Request() failed. <strong>$stat->m_error</strong><br><br>\n";
Add your data using keys.
Then retrieve the value easily :
echo $ventriloStatus['requestMsg'];
You can even parse your data using a simple loop
foreach($ventriloStatus as $key => $value){
echo $key.' : '.$value.'<br />';