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Apr 7 In-Class Exercise.

Please post your solutions to the Apr 7 In-Class Exercise to this thread.

Best, Chris

Please post your solutions to the Apr 7 In-Class Exercise to this thread. Best, Chris

-- Apr 7 In-Class Exercise

Autoloader.php	
<?php
use some_company\some_project\IntHolder; 
 
spl_autoload_register(function ($class) {
  // echo "Trying to load $class\n"; 
 
  $prefix = "some_company\\some_project";
  $len = strlen($prefix);
  if (strncmp($prefix, $class, $len) === 0) {
    // get the relative class name
    $relative_class = substr($class, $len+1).".php";
    // echo $relative_class;
    if (file_exists($relative_class)) {
      require_once($relative_class);
    }
  }
}); 
 
$int_holder = new IntHolder(6);
echo $int_holder->my_num ."\n"; 
 
IntHolder.php	
<?php
namespace some_company\some_project; 
 
class IntHolder
{
  public $my_num; 
 
  function __construct($a_num) {
    $this->my_num = $a_num;
  }
}

(Edited: 2021-04-07)

<pre> '''Autoloader.php''' <?php use some_company\some_project\IntHolder; spl_autoload_register(function ($class) { // echo "Trying to load $class\n"; $prefix = "some_company\\some_project"; $len = strlen($prefix); if (strncmp($prefix, $class, $len) === 0) { // get the relative class name $relative_class = substr($class, $len+1).".php"; // echo $relative_class; if (file_exists($relative_class)) { require_once($relative_class); } } }); $int_holder = new IntHolder(6); echo $int_holder->my_num ."\n"; '''IntHolder.php''' <?php namespace some_company\some_project; class IntHolder { public $my_num; function __construct($a_num) { $this->my_num = $a_num; } } </pre> ((resource:screenshot.jpg|Resource Description for screenshot.jpg))

-- Apr 7 In-Class Exercise

IntHolder.php:

<?php 
namespace some_company\some_project; 
 
class IntHolder {
    public $my_num;
    function _construct($a_num) {
        $this->my_num = $a_num;
    }
}
?>

TestHolder.php:

<?php 
use some_company\some_project\IntHolder; 
 
spl_autoload_register(function ($class) {
    $len = strlen("some_company\\some_project");
    if (strncmp($class, "some_company\\some_project\\", $len) !== 0) {
        return;
    }
    $rest = substr($class, $len);
    $file_name = "./".$rest.".php";
    if (file_exists($file_name)) {
        require_once $file_name;
    }
}); 
 
$int_holder = new IntHolder(6);
echo $int_holder->my_num ."\n";
?>

(Edited: 2021-04-07)

IntHolder.php: <pre> <?php namespace some_company\some_project; class IntHolder { public $my_num; function _construct($a_num) { $this->my_num = $a_num; } } ?> </pre> TestHolder.php: <pre> <?php use some_company\some_project\IntHolder; spl_autoload_register(function ($class) { $len = strlen("some_company\\some_project"); if (strncmp($class, "some_company\\some_project\\", $len) !== 0) { return; } $rest = substr($class, $len); $file_name = "./".$rest.".php"; if (file_exists($file_name)) { require_once $file_name; } }); $int_holder = new IntHolder(6); echo $int_holder->my_num ."\n"; ?> </pre>

-- Apr 7 In-Class Exercise

Resource Description for Screen Shot 2021-04-07 at 4.16.02 PM.png

Resource Description for Screen Shot 2021-04-07 at 4.16.24 PM.png

Resource Description for Screen Shot 2021-04-07 at 4.17.02 PM.png

((resource:Screen Shot 2021-04-07 at 4.16.02 PM.png|Resource Description for Screen Shot 2021-04-07 at 4.16.02 PM.png)) ((resource:Screen Shot 2021-04-07 at 4.16.24 PM.png|Resource Description for Screen Shot 2021-04-07 at 4.16.24 PM.png)) ((resource:Screen Shot 2021-04-07 at 4.17.02 PM.png|Resource Description for Screen Shot 2021-04-07 at 4.17.02 PM.png))

-- Apr 7 In-Class Exercise

IntHolder

<?php

    namespace some_company\some_project;
    class IntHolder{
        public $my_num;
        function __construct($a_num){
            $this->my_num = $a_num;
        }
    }

AutoLoader

<?php

    use some_company\some_project\IntHolder;

    spl_autoload_register(function ($class) {
        $prefix = 'some_company\\some_project\\';
        $len = strlen($prefix);
        if (strncmp($prefix, $class, $len) !== 0) {
            return;
        }
        else{
            $relative_class = substr($class, $len);
        }
        $relative_class = substr($class, $len);
        if(file_exists("./".$relative_class.".php")){
            require_once "./".$relative_class.".php";
        }

});

    $int_holder = new IntHolder(6);
    echo $int_holder->my_num . "\n";

IntHolder <?php namespace some_company\some_project; class IntHolder{ public $my_num; function __construct($a_num){ $this->my_num = $a_num; } } AutoLoader <?php use some_company\some_project\IntHolder; spl_autoload_register(function ($class) { $prefix = 'some_company\\some_project\\'; $len = strlen($prefix); if (strncmp($prefix, $class, $len) !== 0) { return; } else{ $relative_class = substr($class, $len); } $relative_class = substr($class, $len); if(file_exists("./".$relative_class.".php")){ require_once "./".$relative_class.".php"; } }); $int_holder = new IntHolder(6); echo $int_holder->my_num . "\n";

-- Apr 7 In-Class Exercise

 IntHolder:
 <?php
 namespace some_company\some_project;

 class IntHolder
 {
    public $my_num;

    function __construct($a_num) {
        $this->my_num = $a_num;    
    }
 }
 
 other.php

<?php use some_company\some_project\IntHolder;

spl_autoload_register(function ($class) {

    $prefix = 'some_company\\some_project\\';
    $len = strlen($prefix);
    if(strncmp($class, 'some_company\\some_project\\', $len) !==0)
    {
        return;
    }
    // get the relative class name
    $relative_class = substr($class, $len);
    if(file_exists("./".$relative_class .".php"))
    {
        require_once "./".$relative_class .".php";
    }

});

$int_holder = new IntHolder(6); echo $int_holder->my_num ."\n";

(Edited: 2021-04-07)

IntHolder: <?php namespace some_company\some_project; class IntHolder { public $my_num; function __construct($a_num) { $this->my_num = $a_num; } } other.php <?php use some_company\some_project\IntHolder; spl_autoload_register(function ($class) { $prefix = 'some_company\\some_project\\'; $len = strlen($prefix); if(strncmp($class, 'some_company\\some_project\\', $len) !==0) { return; } // get the relative class name $relative_class = substr($class, $len); if(file_exists("./".$relative_class .".php")) { require_once "./".$relative_class .".php"; } }); $int_holder = new IntHolder(6); echo $int_holder->my_num ."\n"; ((resource:174.png|Resource Description for 174.png))

-- Apr 7 In-Class Exercise

namespace some_company\some_project;

class IntHolder{

  public $my_num;

  function __construct($a_num)
  {
    $this->$my_num = $a_num;
  }

}

use some_company\some_project\IntHolder;

if(file_exists(class.php)) {

 spl_autoload_register(function($class))
  {
    $len = strlen('some_company\\some_project\\');
    if(strncmp($class, 'some_company\\some_project\\',$len) !== 0)
    {
      return; //don't know how to autoload file
    }
    $rest_of_string = substr($class, $len);
    if(file_exists("./".$rest_of_string .".php"))
    {
      require "./".$rest_of_string .".php"
    }

}

echo "Earl"; $int_holder = new IntHolder(6); echo $int_holder->my_num ."\n";

namespace some_company\some_project; class IntHolder{ public $my_num; function __construct($a_num) { $this->$my_num = $a_num; } } use some_company\some_project\IntHolder; if(file_exists(class.php)) { spl_autoload_register(function($class)) { $len = strlen('some_company\\some_project\\'); if(strncmp($class, 'some_company\\some_project\\',$len) !== 0) { return; //don't know how to autoload file } $rest_of_string = substr($class, $len); if(file_exists("./".$rest_of_string .".php")) { require "./".$rest_of_string .".php" } } } echo "Earl"; $int_holder = new IntHolder(6); echo $int_holder->my_num ."\n";

-- Apr 7 In-Class Exercise

IntHolder.php <?php namespace some_company\some_project;

class IntHolder{ public $my_num; public function __construct($a_num){

  $this->my_num=$a_num;

} } // // $abc = new IntHolder(5); // echo $abc->my_num; ?>

Autoloader => <?php use some_company\some_project\IntHolder;

spl_autoload_register(function ($class_name) {

  $prefix = 'some_company\\some_project\\';
  $len = strlen($prefix);
  if(strncmp($class_name, $prefix, $len)!==0){
    return ;
  }
  $rest = substr($class_name, $len);
  if(file_exists("./".$rest.".php")){
    require_once "./".$rest.".php";
  }
  require_once "./IntHolder.php";

});

$int_holder = new IntHolder(6); echo $int_holder->my_num ."\n";

Result

IntHolder.php <?php namespace some_company\some_project; class IntHolder{ public $my_num; public function __construct($a_num){ $this->my_num=$a_num; } } // // $abc = new IntHolder(5); // echo $abc->my_num; ?> Autoloader => <?php use some_company\some_project\IntHolder; spl_autoload_register(function ($class_name) { $prefix = 'some_company\\some_project\\'; $len = strlen($prefix); if(strncmp($class_name, $prefix, $len)!==0){ return ; } $rest = substr($class_name, $len); if(file_exists("./".$rest.".php")){ require_once "./".$rest.".php"; } require_once "./IntHolder.php"; }); $int_holder = new IntHolder(6); echo $int_holder->my_num ."\n"; Result ((resource:Capture.PNG|Resource Description for Capture.PNG))

-- Apr 7 In-Class Exercise

autoloader.php <?php use some_company\some_project\IntHolder;

 
	spl_autoload_register(function ($class) {
  
 
  	$prefix = "some_company\\some_project";
  	$len = strlen($prefix);
  if (strncmp($prefix, $class, $len) === 0) {
    // get the relative class name
    $relative_class = substr($class, $len+1).".php";
    // echo $relative_class;
    if (file_exists($relative_class)) {
      require_once($relative_class);
    }
  }

});

$int_holder = new IntHolder(6); echo $int_holder->my_num ."\n";

?>

IntHolder.php <?php

	
	namespace some_company\some_project;

	class IntHolder{
		public $my_num;

		function __construct($a_num) {
    		$this->my_num = $a_num; 
  		}

?>

Resource Description for Screen Shot 2021-04-07 at 4.23.03 PM.png

autoloader.php <?php use some_company\some_project\IntHolder; spl_autoload_register(function ($class) { $prefix = "some_company\\some_project"; $len = strlen($prefix); if (strncmp($prefix, $class, $len) === 0) { // get the relative class name $relative_class = substr($class, $len+1).".php"; // echo $relative_class; if (file_exists($relative_class)) { require_once($relative_class); } } }); $int_holder = new IntHolder(6); echo $int_holder->my_num ."\n"; ?> IntHolder.php <?php namespace some_company\some_project; class IntHolder{ public $my_num; function __construct($a_num) { $this->my_num = $a_num; } } ?> ((resource:Screen Shot 2021-04-07 at 4.23.03 PM.png|Resource Description for Screen Shot 2021-04-07 at 4.23.03 PM.png))

-- Apr 7 In-Class Exercise

Intholder.php <?php

     namespace some_company\some_project;

     class IntHolder {
        public $my_num;
        function __construct($intToHold) {
            $this->my_num = $intToHold;
        }
      }

Autoloader.php <?php

      use some_company\some_project\IntHolder;

      spl_autoload_register(
          function($class) {
            $len = strlen('some_company\\some_project\\');  
            if (strncmp($class, 'some_company\\some_project\\', $len) !== 0) {
                return;
            }
          $rest_of_string = substr($class, $len);
          if (file_exists("./".$rest_of_string .".php")) {
              require_once "./".$rest_of_string .".php";
          }
      });

      $int_holder = new IntHolder(6);
      echo $int_holder->my_num ."\n";

Intholder.php <?php namespace some_company\some_project; class IntHolder { public $my_num; function __construct($intToHold) { $this->my_num = $intToHold; } } Autoloader.php <?php use some_company\some_project\IntHolder; spl_autoload_register( function($class) { $len = strlen('some_company\\some_project\\'); if (strncmp($class, 'some_company\\some_project\\', $len) !== 0) { return; } $rest_of_string = substr($class, $len); if (file_exists("./".$rest_of_string .".php")) { require_once "./".$rest_of_string .".php"; } }); $int_holder = new IntHolder(6); echo $int_holder->my_num ."\n";