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 Syntax
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PHP Syntax

PHP Syntax

The syntax is a way to a representation of the PHP script. It gives the basic idea to specify the code format.

There are three ways to start PHP

Here, echo statement is used to print the given string on web page.

Canonical PHP tags

<?php
echo “Welcome to PHP language”;
?>

Short-open (SGML-style) tags

<?
echo “Welcome to PHP language”; 
?>

HTML script tags

<script language="PHP">
        echo “Welcome to PHP language”; 
</script>