[Uploading Images - Single and/or Multiple]

you can check empty value for any image field before insert to your database

and this is the best practice

[Booleans: What is the difference between NULL and empty?]

Thank so much  chrsm and rythemton

 

is it not have the default value  because php has a loosely typed language

 

 

[Booleans: What is the difference between NULL and empty?]

in my opinion

 

the NULL is not assign anything to the variable

and

most of default value are EMPTY value

so if check it by empty() it return TRUE

but if check by is_null()  it should be return FALSE

 

$a = NULL; // i think $a will not keep anything
$b;  // it assign to the default value --> i think it must be the empty value

[include problem]

you can use the default value

for example

$message = "you default value";

include("some_process_file_that_change_behavior_of_message_var.php");

//follow you code check here

 

hope it help

[Mysql_fetch_array(): Error?]

sorry requinix for the my mistake

and

thank you for you suggestion

 

for  the next post i will carefully review

 

 

[Mysql_fetch_array(): Error?]

please reforrmatting your code

 

 

normaly

mysql_fetch_array() is try to get the result from the given resource

so

if there are empty result, it will thrown out some warning

[Not inserting]

in the code example

the $recipients and $bcc argument MUST BE an array

 

so if the $recipients and $bcc is not an array

you will get some warning message

 

well, if this is the codeigniter ( i think it is codeigniter )

the insert line is corrected

 

*** make sure ***

in your code example

the recipient  will always replace by bcc id before save if you pass $bcc into a function

[Not sure why]

i think ( i'm not sure )

 

you sql is specify all row that mpid contain 6

so

the if expression must be alway true except if you get the empty result

[How can i check if associate array element is empty or not?]

sorry for this is the example

[/td]

[td]empty()

isset()

is_null()

0

TRUE

TRUE

FALSE

0.0

TRUE

TRUE

FALSE

"0"

TRUE

TRUE

FALSE

""

TRUE

TRUE

FALSE

"  "

FALSE

TRUE

FALSE

NULL

TRUE

FALSE

TRUE

FALSE

TRUE

TRUE

FALSE

array()

TRUE

TRUE

FALSE

[How can i check if associate array element is empty or not?]

let's check this for example

 

if the variable assign to this value

 

0 ----> number 0
"0"   ----> string 0
"" ----> empty string
"  "  ----> string with whitespace
0.0 ----> double value
array()  ----> empty array
NULL   ----> null value
FALSE -----> boolean false

 

if use

empty() ----> will return TRUE

is_null() ---> return TRUE on NULL value

isset() --->  all above are TRUE except FALSE and NULL value

 

 

[How can i check if associate array element is empty or not?]

use this

 

if( empty($str['comment']['email']) )
{
   // do something if empty value
}
else
{
   // if not empty
}