PHP Simple QA

simple class example in php

2012-02-15T04:02:00.001-08:00

simple class example in php

<?php
class Customer {
public $name;

public function setName($name) {
$this->name = $name;
}

public function getName() {
return $this->name;
}
}

$c = new Customer();
$c->setName("Sunil Bhatia");
echo $c->name; // this will work as it is public.
$c->name = "New Name" ; //
?>

How can remove duplicate values from an array php

2011-08-31T11:51:00.000-07:00

You can use array_unique function in php

<?php

$value = array("test","test1","test2","test"); $value = array_unique($value); print_r($value); ?>

Outputs:

Array
(
[0] => test
[1] => test1
[2] => test2
)

how can get current time in mysql

2011-08-30T11:27:00.000-07:00

how can get current time in mysql

NOW() using in query u can get current time...

<?php
$update = mysql_query("UPDATE test SET lastlogin = NOW() WHERE username = 'test'"); ?>

How can check value exit in an array

2011-08-30T11:20:00.000-07:00

How can check value exit in an array

in_array function can use to check value exit in an array

example
<?php
$value1 = array("test","test1","test2","test4"); $new_value1="test1";
if (in_array($new_value1,$value1)) { echo "$newvalue is already in the array!"; } ?>

php shorthand operater

2011-08-29T11:43:00.000-07:00

php shorthand operater (.=)

concatenation example
$test.=$tes1;
same like above
$test=$test.$tes1;

how can make mysql support all language

2011-08-29T11:29:00.000-07:00

how can make mysql support all language

ALTER DATABASE MyDb CHARACTER SET utf8;

interpolation with curly braces in php

2011-08-28T11:24:00.000-07:00

interpolation with curly braces in php

$test="test2";
Ex:$plan="test1 {$test} test3";

strings in php

2011-08-28T11:19:00.000-07:00

strings in php

String are Sequence of characters that can be treated as a unit assigned to variables,simple specify php code is to enclose it in quotes

string in php whether single or double

ex:$my='php single string';
$my1="double quotes"

full Text search in mysql

2011-08-27T08:45:00.000-07:00

full Text search in mysql

MySQL supported FULLTEXT indexes 3.23.23.VARCHAR and TEXT Columns that have been indexed with FULLTEXT can be used with special SQL statements that perform the full text search in MySQL.

ALTER TABLE test_tab ADD FULLTEXT(title, body);
Once you have done FULLTEXT index, you can search it using MATCH and AGAINST statements. For example:

SELECT * FROM test_tab
WHERE MATCH ((title, body) AGAINST ('body content');
The result of this query is automatically sorted by relevancy.

some case not support fulltext index because Full-text indexes can be used only with MyISAM

php ternary operator

2011-08-21T10:37:00.000-07:00

php ternary operator

evaluate experssion 1 if experssion one is true evaluate experession 2 otherwise return expression 3

syntax ternary operater
experssion-1?
experssion-2 :
experssion-3

file uploading code in php

2011-08-21T09:40:00.000-07:00

file uploading code in php

How to HTML form will work

<form action="upload.php" method="post" enctype="multipart/form-data">
<input type="file" name="fileupload" id="file" />
<input type="submit" name="submit" value="Upload file" />
</form>

PHP file code

<?php
if ($_FILES["fileupload"]["error"] > 0)
{
echo "Error code when upload: " . $_FILES["fileupload"]["error"] . "<br />";
}
else
{
echo "Upload file name : " . $_FILES["fileupload"]["name"] . "<br />";
echo "Type of the file: " . $_FILES["fileupload"]["type"] . "<br />";
echo "Size of the file in KB: " . ($_FILES["fileupload"]["size"] / 1024) . "<br />";
echo "Stored in temporary folder : " . $_FILES["fileupload"]["tmp_name"];
move_uploaded_file($_FILES["fileupload"]["tmp_name"],"uploads/".$_FILES["file"]["name"]);
}
?>

how can sending email in php

2011-08-21T09:19:00.000-07:00

how can sending email in php

mail() function using for email sending in php

<?php
$from="test@gmail.com";
$to="to@gmail.com";
$subject="Test Mail";
$message="Hi ,<br />".
"test mail <br />".
"Thank You";
$headers = "From: $from\r\nContent-type: text/html";
if(mail($to,$subject, $message, $headers))
{
echo "MAIL SENT SUCCESSFULLY";
}
else
{
echo "SOME ISSUE WITH MAIL SENDING in SERVER";
}
?>

how can Adding line break using PHP

2011-08-21T09:14:00.000-07:00

how can Adding line break using PHP

nl2br()

<?php
echo nl2br("test\n php line break");
?>

how many ways retrieve the data in the result set of MySQL using PHP

2011-08-20T22:23:00.001-07:00

1. mysql_fetch_row
2. mysql_fetch_array
3. mysql_fetch_object
4. mysql_fetch_assoc

terminate script in php

2011-08-18T11:47:00.000-07:00

php terminating script

exit() ;
die();

break and continue in php

2011-08-18T11:42:00.000-07:00

break command exits the innermost loop construct the contains it
continue command skip to the end of current iteration

break command example in php

for($i=0;$i<10;$i++)
{
if($i%2!=0)
break;
print("$i");
}
continue command example

for($i=0;$i<10;$i++)
{
if($i%2!=0)
continue;
print("$i");
}

switch syntax in php

2011-08-18T11:31:00.000-07:00

switch syntax in php

swicth(expression)
{
case value1:
stms1
stms2
break;
case 2:
stms1;
break
.
.
.
default
default stms
}

Find Largest number among 3 numbers using switch case in php

2011-08-09T12:07:00.000-07:00

<?php 
	    $a = 11; 
	    $b = 2; 
	    $c = 20; 
	    // Swich allows expression 
	    switch($a>$b AND $b>$c){ 
	        case TRUE: echo "$a is bigger"; 
	                   break; 
	        case FALSE: switch($b>$c){ 
	            case TRUE: echo "$b is bigger"; 
	                       break; 
	            case FALSE: echo "$b is bigger"; 
	                        break; 
	        }     
	    } 
	?>

php supported logical operators

2011-08-09T12:00:00.000-07:00

php supported logical operators

and
or
||
&&
!

what are printing functions in php

2011-08-09T11:57:00.000-07:00

printing functions in php

print_r() and var_dump

what are difference between echo and print in php

2011-08-09T11:55:00.000-07:00

difference between echo and print in php

The two most construct for printing out put echo and print,the value returned by print will be 1 if printing was successful otherwise returned 0 if unsuccess,echo is a statement and print is function

php escape sequence

2011-08-09T11:44:00.000-07:00

php escape sequence

php offers escape sequence characters (/n), u can add new line middle of string

list of php types

2011-08-03T11:36:00.000-07:00

php types

Booleans(ture and false)
Integers(numbers with out decimal)
Floating point numbers
Strings
Arrays
Objects
Resources
NULL
Pseudo-types and variables used in this documentation
Type Juggling

what do u mean by php constants

2011-08-03T11:25:00.000-07:00

php constants

which have single value throughout their life time....

define(code,111);

how can check value assign or not in php

2011-08-03T11:11:00.000-07:00

isset that test variable assign or not;