Databases
StackOverflow2013
Postsdbo
PONot sure why the method is not returning any value
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PONot sure why the method is not returning any value
    primarykey
    data
    text
    <p>I know I already have a similar post, but I can't for the life of me work out what is different between the two snippets - as I can only get the return value from the first example - but not the second example, both methods in the examples return a value. What is even more bizarre (or frustrating) is that php does not throw up any errors on the second example it simply presents a blank screen. I am running on XAMMP and I believe "show errors" etc. is set to true.</p> <p>First example (works perfectly):</p> <pre><code>&lt;html&gt; &lt;?php function myMethod() { return "testing"; } ?&gt; &lt;script type="text/javascript"&gt; var val= "&lt;?php echo myMethod(); ?&gt;"; document.write(val); &lt;/script&gt; &lt;/html&gt; </code></pre> <p>Second example: (Note only the 'myMethod' function has changed)</p> <pre><code>&lt;html&gt; &lt;?php function myMethod() { error_reporting(E_ALL); echo "&lt;h2&gt;Querying...&lt;/h2&gt;\n"; /* Get the port for the WWW service. */ $service_port = getservbyname('www', 'tcp'); /* Get the IP address for the target host. */ $address = gethostbyname('www.example.com'); /* Create a TCP/IP socket. */ $socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP); if ($socket === false) { echo "socket_create() failed: reason: " . socket_strerror(socket_last_error()) . "\n"; } else { echo "OK.\n"; } echo "Attempting to connect to '$address' on port '$service_port'..."; $result = socket_connect($socket, $address, $service_port); if ($result === false) { echo "socket_connect() failed.\nReason: ($result) " . socket_strerror(socket_last_error($socket)) . "\n"; } else { echo "OK.\n"; } $in = "HEAD / HTTP/1.1\r\n"; $in .= "Host: www.example.com\r\n"; $in .= "Connection: Close\r\n\r\n"; $out = ''; echo "Sending HTTP HEAD request..."; socket_write($socket, $in, strlen($in)); echo "OK.\n"; echo "Reading response:\n\n"; while ($out = socket_read($socket, 2048)) { echo $out; return 'test'; } echo "Closing socket..."; socket_close($socket); echo "OK.\n\n"; } ?&gt; &lt;script type="text/javascript"&gt; var val= "&lt;?php echo myMethod(); ?&gt;"; document.write(val); &lt;/script&gt; &lt;/html&gt; </code></pre> <p>Update: Further to what @the system said, it looks like the variable contains the correct data but "document.write" does not seem to pipe it out to the browser view properly:</p> <pre><code>&lt;html&gt; &lt;script type="text/javascript"&gt; var val= "&lt;h2&gt;Querying...&lt;/h2&gt; OK. Attempting to connect to '192.0.43.10' on port '80'...OK. Sending HTTP HEAD request...OK. Reading response: HTTP/1.0 302 Found Location: http://www.iana.org/domains/example/ Server: BigIP Connection: close Content-Length: 0 test"; document.write(val); &lt;/script&gt; &lt;/html&gt; </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USLouis Huppenbauer
    1. USMike
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. PONot sure why the method is not returning any value
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PONot sure why the method is not returning any value
      1. This table or related slice is empty.
      1. VTUpMod
    1. COOpen your developer console to read errors. Show the JavaScript that is rendered instead of the PHP.
      singulars
      1. PONot sure why the method is not returning any value
      1. USthe system
    2. COOne major flaw is that you'll be dumping all those `echo` statements into your JS variable assignment, BEFORE the return value gets echoed out. Any `"` in there will cause a JS syntax error. **NEVER** directly output PHP data into a JS code context without passing it through json_encode() first.
      singulars
      1. PONot sure why the method is not returning any value
      1. USMarc B
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload