Interview Questions -PHP

Hi All,


I'm sharing my experience which may help to PHP buddies.

1.First Question :

   function 1dolist() {
       $number = 5;
      echo  1doout($number);
   }
    function 1doout($n) {
        return $n;

     }

 
   1dolist();





All d Best ....Post  your Answer.

Read Text file Using PHP

Please find the logic:
$file_handle = fopen("file.txt", "rb");
while (!feof($file_handle) ) {

$line_of_text = fgets($file_handle);

$parts = explode(' ', $line_of_text);
foreach ($parts as $keys){
if($keys != ''){
$query_data[] =$keys;
}else{
$query_data[] ="NULL";
}
}

echo $str = implode(',', $query_data);
?>

Export to Excel Using PHP

Hi
Use the Code :
# file name for download Using Headers
$filename = "urfile_data_" . date('Ymd') . ".xls";
header("Content-Disposition: attachment; filename=\"$filename\"");
header("Content-Type: application/vnd.ms-excel");

$flag = false;
$result = mysql_query($sql) or die('Query failed!');
while(false !== ($row = mysql_fetch_assoc($result))) {
if(!$flag) {
# display field/column names as first row
echo implode("\t", array_keys($row)) . "\n";
$flag = true;
}
array_walk($row, 'cleanData');
echo implode("\t", array_values($row)) . "\n";
}


function cleanData(&$str) {
$str = preg_replace("/\t/", "\\t", $str);
$str = preg_replace("/\r?\n/", "\\n", $str);
if(strstr($str, '"'))
$str = '"' . str_replace('"', '""', $str) . '"';
}

Passing Values from PHP to Javascript

Hi Developers,
We can able to send values from php to javascript using php coding without submit the form using submit button.
I think most of you are having knowledge to send values from php to javascript but i am posting for new buddies & myself

1)Create a New PHP page(sample.php) and Copy & Paste it.

echo "Hello ";
echo "
";
echo "Hello ";
echo "
";
echo "Hello ";
And ADD SCRIPT TAGS
function test(url) {
var chk = confirm ("Can i proceed?");
if(chk){
location.href=url;
}else{
alert('oooppppppppps');
}
}
Close SCRIPT TAGS.


2)Create a other New PHP page(test.php) and Copy & Paste it.
echo $_GET['id'];


Execute the code in the browser that php values are passed to javascript :)

Example Application:
Basic functionality for any appication in website i.e Delete a record in the database.


Gud Luck :)

Display a Triangle format Numbers using PHP code

Hi All,
Program to Display following using php code:
1
2 3
4 5 6
7 8 9 10
11 12 13 14 15

CODE:
Start php here
$k=1;
for($i=0;$i<5;$i++){
for($j=0;$j<=$i;$j++){
echo $k." ";
$k++;
}
echo "
";
}
End php tag

Check out the output...


All d best

CKEDITOR configuration to change Default settings

Hi All,
I need to modify a default setting in CKEDITOR for changing paragraph format in the editor to except "DIV" tags.
So i googled & worked on the configuration of CKEDITOR,finally i got a file i.e "ckeditor.js" located (ckeditor/ckeditor.js) and

Default Setting
enterMode:1
We need to modify
enterMode:3


Now check ur output i will set to "Normal(div)" format.


All d Best

Validation for Radio Button in Javascript

Hi Programmers,
I just faced little difficult to validate radio box element using java script but i think most of the developer had done lot of script on radio box validation.

For my sake i am posting blog on validation on radio box.

function valButton(btn) {
var cnt = -1;
for (var i=btn.length-1; i > -1; i--) {
if (btn[i].checked) {cnt = i; i = -1;}
}
if (cnt > -1) return btn[cnt].value;
else return null;
}

function valForm(form) {
var btn = valButton(form.group1);
if (btn == null) alert('No radio button selected');
else alert('Button value ' + btn + ' selected');
}

button one

button two

button three