duncanb7
asked on
URL's name in file_get_contents in PHP
Dear Expert,
I am using $file_url =file_get_contents("http://www.othersite.com/test.aspx?Sybmol=10') in php that
is working fine and I can echo the contents from $file_url,
Since I would like to program the Symbol in Link , so we put it into variable such as $a
$a=10;
$file_url =file_get_contents("http://www.othersite.com/test.aspx?Sybmol='.$a);
echo $file_url;
But it fail to echo; and me give error message <h1>Bad Request (Invalid Header Name)</h1>
and I try to $file_url =file_get_contents("http://www.othersite.com/test.aspx?Sybmol='.constant($a));
and it is also failed and warn it constant() is not made;
Why? Please advise
Also I want to know when we will use constant() in php, what is advantage over using variable ?
Duncan
I am using $file_url =file_get_contents("http://www.othersite.com/test.aspx?Sybmol=10') in php that
is working fine and I can echo the contents from $file_url,
Since I would like to program the Symbol in Link , so we put it into variable such as $a
$a=10;
$file_url =file_get_contents("http://www.othersite.com/test.aspx?Sybmol='.$a);
echo $file_url;
But it fail to echo; and me give error message <h1>Bad Request (Invalid Header Name)</h1>
and I try to $file_url =file_get_contents("http://www.othersite.com/test.aspx?Sybmol='.constant($a));
and it is also failed and warn it constant() is not made;
Why? Please advise
Also I want to know when we will use constant() in php, what is advantage over using variable ?
Duncan
SOLUTION
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SOLUTION
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ASKER
Do we need to define varaible.
I get used to for example, if need a variable just typing
$a;
$b= $a+1;
I never use Dim to define variable like in VBA
I get used to for example, if need a variable just typing
$a;
$b= $a+1;
I never use Dim to define variable like in VBA
ASKER
Is it related to the seting in php.ini file ?
ASKER
Could you explain more, What is different form your code to my code about $a
I open and close the speech marks using the same type of paresis
ie :
$a = 10; //define $a to be 10
$b='http://www.othersite.com/test.aspx?Sybmol='.$a; //$b = http://www.othersite.com/test.aspx?Sybmol=10
$file_url =file_get_contents($b); //gets the content returned into $file_urlYou don't need to use dim, http://www.tizag.com/phpT/variable.php
ASKER
I tried this before and it is also fail that is why I put back 'http://www.othersite.com/test.aspx?Sybmol='
int file_get_contents()
int file_get_contents()
SOLUTION
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You might use something like this to make your URL string visible.
Instead of this...
$a=10;
$file_url =file_get_contents("http://www.othersite.com/test.aspx?Sybmol='.$a);
echo $file_url;
Try this...
$a=10;
$url = "http://www.othersite.com/test.aspx?Sybmol=$a";
echo $url;
$file_url =file_get_contents($url);
echo $file_url;
You might also want to check the spelling of Sybmol vs Symbol. You might also want to learn about this function:
http://php.net/manual/en/function.urlencode.php
There is also the possibility that the GET argument keys are case-sensitive, so Symbol would be different from symbol.
Instead of this...
$a=10;
$file_url =file_get_contents("http://www.othersite.com/test.aspx?Sybmol='.$a);
echo $file_url;
Try this...
$a=10;
$url = "http://www.othersite.com/test.aspx?Sybmol=$a";
echo $url;
$file_url =file_get_contents($url);
echo $file_url;
You might also want to check the spelling of Sybmol vs Symbol. You might also want to learn about this function:
http://php.net/manual/en/function.urlencode.php
There is also the possibility that the GET argument keys are case-sensitive, so Symbol would be different from symbol.
ASKER CERTIFIED SOLUTION
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ASKER
Be reminded 10 is variable ,
ASKER
Thanks for your reply,
Only
$var="0"
$data = array('Symbol'=>$var);
$url = "http://www.othersite.com/test.aspx?".http_build_query($data)
echo $url;
Only
$var="0"
$data = array('Symbol'=>$var);
$url = "http://www.othersite.com/test.aspx?".http_build_query($data)
echo $url;
ASKER