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diff bet mysql_fetch_object() and mysql_fetch_array()?
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diff php4 and php 5?
op - 2+5+"8"=?
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diff bet $msg,$$msg?
diff bet require(), include(), include_once()?
tables in mysql?
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Answer / dinesh g
Q : diff bet mysql_fetch_object() and mysql_fetch_array()?
A : mysql_fetch_object() will return the resulted row as
object, mysql_fetch_array() will return the resulted row as
associated array and numeric array.
Q : diff php4 and php 5?
A :
# Unified __Constructor & Destructor,
# introduced magic method like, __call, __tostring, __get,
__set.
# introduced autoload().
# Added visibility using Public.,private,protected
# Added abstract class and interfaces
# Class constants and static methods.
Q : op - 2+5+"8"=?
A : 2 & 5 is numeric 8 is a string
so 2+5 = 7, then 7 is concatinated with 8
result : 78
Q : command line argument in php?
A : Once CLI [ Command Line Interface ] is opened the to run
a file execute the below command.
$php sample.php
Note : If sample.php was coded as per CGI [ I.e., Not CLI ]
then it may not execute properly.
Q : diff bet $msg,$$msg?
A : $msg is a variable which can hold values of the user and
$$msg is a reference variable. which can refer some other
variable.
Q : diff bet require(), include(), include_once()?
A : All the three are to include another php file to access
the variables & methods of that php.
require() -> it will not execute if the file is not found
provide error and stops executing.
include() -> it'l show warning if file not found also it
will execute the other codes of the php file
include_once() -> file should be included only once else
it'll return a warning message.
Q : tables in mysql?
A : I guess u mean Engines in Mysql not tables. So if u
meant as Engine, then
1)MyISAM
2)ISAM
3)Heap
4)innodb
5)BDB
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