A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::open($save_path, $name) should either be compatible with SessionHandlerInterface::open(string $path, string $name): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 132

Backtrace:

File: /home/infovistar/public_html/application/controllers/php/Php.php
Line: 7
Function: __construct

File: /home/infovistar/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::close() should either be compatible with SessionHandlerInterface::close(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 292

Backtrace:

File: /home/infovistar/public_html/application/controllers/php/Php.php
Line: 7
Function: __construct

File: /home/infovistar/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::read($session_id) should either be compatible with SessionHandlerInterface::read(string $id): string|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 166

Backtrace:

File: /home/infovistar/public_html/application/controllers/php/Php.php
Line: 7
Function: __construct

File: /home/infovistar/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::write($session_id, $session_data) should either be compatible with SessionHandlerInterface::write(string $id, string $data): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 235

Backtrace:

File: /home/infovistar/public_html/application/controllers/php/Php.php
Line: 7
Function: __construct

File: /home/infovistar/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::destroy($session_id) should either be compatible with SessionHandlerInterface::destroy(string $id): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 315

Backtrace:

File: /home/infovistar/public_html/application/controllers/php/Php.php
Line: 7
Function: __construct

File: /home/infovistar/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::gc($maxlifetime) should either be compatible with SessionHandlerInterface::gc(int $max_lifetime): int|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 356

Backtrace:

File: /home/infovistar/public_html/application/controllers/php/Php.php
Line: 7
Function: __construct

File: /home/infovistar/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 282

Backtrace:

File: /home/infovistar/public_html/application/controllers/php/Php.php
Line: 7
Function: __construct

File: /home/infovistar/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_set_cookie_params(): Session cookie parameters cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 294

Backtrace:

File: /home/infovistar/public_html/application/controllers/php/Php.php
Line: 7
Function: __construct

File: /home/infovistar/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 304

Backtrace:

File: /home/infovistar/public_html/application/controllers/php/Php.php
Line: 7
Function: __construct

File: /home/infovistar/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 314

Backtrace:

File: /home/infovistar/public_html/application/controllers/php/Php.php
Line: 7
Function: __construct

File: /home/infovistar/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 315

Backtrace:

File: /home/infovistar/public_html/application/controllers/php/Php.php
Line: 7
Function: __construct

File: /home/infovistar/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 316

Backtrace:

File: /home/infovistar/public_html/application/controllers/php/Php.php
Line: 7
Function: __construct

File: /home/infovistar/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 317

Backtrace:

File: /home/infovistar/public_html/application/controllers/php/Php.php
Line: 7
Function: __construct

File: /home/infovistar/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 375

Backtrace:

File: /home/infovistar/public_html/application/controllers/php/Php.php
Line: 7
Function: __construct

File: /home/infovistar/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_set_save_handler(): Session save handler cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 110

Backtrace:

File: /home/infovistar/public_html/application/controllers/php/Php.php
Line: 7
Function: __construct

File: /home/infovistar/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Session cannot be started after headers have already been sent

Filename: Session/Session.php

Line Number: 143

Backtrace:

File: /home/infovistar/public_html/application/controllers/php/Php.php
Line: 7
Function: __construct

File: /home/infovistar/public_html/index.php
Line: 315
Function: require_once

PHP switch
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PHP switch

Overview

The while loop executes a block of code repeatedly until the condition is FALSE.

Syntax:

while (condition is true) {
  	code to be executed;
}

Example:

$number = 1;
while($num <= 5) {
  	echo "The number is: $num 
"; $num++; }
  • $num = 1; - Initialize the loop counter ($num), and set the start value to 1
  • $num <= 5 - Continue the loop as long as $num is less than or equal to 5
  • $num++; - Increase the loop counter value by 1 for each iteration