count_chars - Count Number of character of string with PHP

mixed count_chars ( string $string [, int $mode = 0 ] )

Return information about characters used in a string

Mode value can have 0-5 and return following results

1. 0 - Return an array with the byte-value as key and the frequency of every byte as value.
2. 1 - same as 0 but only byte-values with a frequency greater than zero are listed.
3. 2 - same as 0 but only byte-values with a frequency equal to zero are listed.
4. 3 - a string containing all unique characters is returned.
5. 4 - a string containing all not used characters is returned.

Counts the number of occurrences of every byte-value (0..255) in string and returns it in various ways.


<?php
$data = "Two Ts and one F.";

foreach (count_chars($data, 1) as $i => $val) {
   echo "There were $val instance(s) of \"" , chr($i) , "\" in the string.\n";
}?>

065 PHP من الألف إلى الياء Arabic التعامل مع النصوص Strings pt1

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Codeigniter Interview Questions for Experienced

Question: What is CodeIgniter?
Codeigniter is an open source framework for web application on PHP. It is loosely based on MVC pattern and it is similar to CakePHP.


Question: What is Stable version of CodeIgniter?
Version: 3.0.4,
Date January 13, 2016


Question: In Which language CodeIgniter is written?
PHP

Question: What are the features of codeigniter? Open source framework
Light Weight
CodeIgniter is Extensible
Full Featured database classes


Question: How to access config variable in codeigniter?

$this->config->item('variable name');

Question: How to unset session in codeigniter?

 $this->session->unsetuserdata('somename');;

Question: How do you get last insert id in codeigniter?

 $this->db->insertid();;

Question: How to print SQL statement in codeigniter model??

 $this->db->lastquery();;

Question: What are hooks in CodeIgniter?
CodeIgniter's Hooks feature provides a means to tap into and modify the inner workings of the framework without hacking the core files.

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Question: How to load model in CodeIgniter?

$this->load->model ('Model_Name');

Question: What helpers in CodeIgniter?
You can to execute below command.

RCPT To:
This identifies the receipient of the email message. This command can be repeated multiple times for a given message in order to deliver a single message to multiple receipients.






Question: What is offical Website URL?
http://www.codeigniter.com


Question: List out different types of hook in Codeigniter?

1. post_controller_constructor
2. pre_controller
3. pre_sytem
4. post_sytem
5. cache_override
6. display_override
7. post_controller

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