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PHP Interview Questions

Interview Questions >> PHP
Questions of this Category ( 56 )
QuestionAsked ByAnswers
View DiscussionCron Jobs
What are cron jobs? Explain in details.
DetailsInn1
View DiscussionDifference between mysql_connect and mysql_pconnect? DetailsInn3
View DiscussionWhat is the difference between copy() & move_uploaded_file() in file uploading?DetailsInn3
View DiscussionWhat is the use of obj_start()? DetailsInn1
View DiscussionWhat is the difference between echo and print?DetailsInn3
View DiscussionWhat are the data types supported by PHP ? DetailsInn1
View DiscussionHow to find number of arguments passed to a function ?DetailsInn1
View DiscussionHow to prevent form hijacking in PHP ? DetailsInn1
View DiscussionWhat is PHP ?DetailsInn2
View DiscussionWhat Is a Session? DetailsInn1
View DiscussionWhat is PEAR in php? DetailsInn1
View DiscussionHow to find the number of days between two given dates using PHP? DetailsInn1
View DiscussionHow can we repair a MySQL table? DetailsInn1
View DiscussionWhat is the difference between $a and $$a?DetailsInn1
View Discussionwhat is persistent cookie? DetailsInn2
View DiscussionWhat does a special set of tags <?= and ?> do in PHP? DetailsInn1
View DiscussionHow you will define a constant in PHP ?DetailsInn1
View DiscussionWhat are the things needs to be considered when you code a form for file upload in PHP ?DetailsInn1
View DiscussionWhat is the difference between include() and require() functions in PHP ?DetailsInn1
View DiscussionWhat is the difference between include() and include_once() functions in PHP ?
[ also require() and require_once() ]
DetailsInn1
View DiscussionHow to destroy a cookie? DetailsInn1
View DiscussionHow to get current session id in PHP ?DetailsInn2
View DiscussionWhat is the difference between PHP4 and PHP5? DetailsInn1
View DiscussionHow to add variables in to session in PHP ?DetailsInn1
View DiscussionHow to get the uploaded file information ( uploaded through PHP file upload mechanism )in the PHP receiving script ? DetailsInn1
View DiscussionWhat is the use of urlencode() and urldecode() functions in PHP ? DetailsInn1
View DiscussionWhat is the difference between mysql_fetch_object and mysql_fetch_array ? DetailsInn2
View DiscussionWhat is MIME ?DetailsInn1
View DiscussionHow do you return the a hundred records starting from 25th? DetailsInn1
View DiscussionWhat are the different types of Errors in PHP?DetailsInn1
View DiscussionWhat is the difference between $this and self ?DetailsInn1
View DiscussionHow can we remove duplicate values from an array ?DetailsInn1
View DiscussionWhat will be the output ? explain ...
<?php
$a=0123;
$b="0123";
echo $a."<br />";
echo $b."<br />";
?>
DetailsInn2
View DiscussionWhere can we find the latest versions of PHP and MySQL ?DetailsInn1
View DiscussionWhat was the default storage engine in MySQL ? Name the storage engines that you know ...DetailsInn1
View DiscussionIs it possible to read a entire file into a variable in PHP ? If possible specify how ?DetailsInn1
View DiscussionHow to turn on session on a page without using session_start() function ?DetailsInn1
View DiscussionIs it possible to send email through JavaScript ?DetailsInn1
View Discussionwhat is the difference between strstr() and stristr() in PHP? DetailsInn1
View DiscussionExplain about polymorphism ?DetailsInn1
View DiscussionHow to encrypt password ?DetailsInn1
View DiscussionHow do you call a constructor for a parent class?DetailsInn2
View DiscussionWhen are you supposed to use endif to end the if statement? DetailsInn1
View DiscussionWhat is the difference between ereg_replace() and eregi_replace()? DetailsInn1
View DiscussionHow can we submit a form without a submit button? DetailsInn1
View DiscussionWhat is the difference between mysql_connect() & @mysql_connect()?DetailsInn1
View DiscussionHow can we find number of arguments passed to a function in PHP ?DetailsInn1
View DiscussionHow to create an object for the class named "MyClass" ?DetailsInn1
View DiscussionWhat is the use of var_dump() function in PHP ?DetailsInn1
View DiscussionHow to protect special characters in Query String? DetailsInn1
View DiscussionWhat is the difference between "==" (equal) and "===" (identical) comparison operators in PHP ?DetailsInn1
View DiscussionHow we can made the letters to capital using PHP ?DetailsInn3
View DiscussionWhat iss the difference between htmlentities() and htmlspecialchars()? DetailsInn1
View DiscussionWhat will be the output ?
<?php
    $num = 10;
    function multiply(){
    $num = $num * 10;
    }
    multiply();
    echo $num;
?>

DetailsInn2
View DiscussionWhat is the difference between "DROP" and "TRUNCATE" table commands ? DetailsInn1
View DiscussionWhat is Cron Tab ?DetailsInn1

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