Module 1 Notes

PHP Manual

PHP Manual

Simple prints

php echo $_SERVER['HTTP_USER_AGENT'];

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

Simple if block

if (strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE') !== FALSE) { echo 'You are using Internet Explorer.<br />'; } else { echo 'You are not using Internet Explorer.<br />'; }

You are not using Internet Explorer.

Simple form

Variables


        $a_bool = TRUE;   // a boolean

        $a_str  = "foo";  // a string

        $a_str2 = 'foo';  // a string

        $an_int = 12;     // an integer

        $an_arr = array('1', 2, "$a_bool"); // an indexed array

        $a_map = ["number" => '1',"integer" => 2, "String" => "$a_bool"]; // an associative array 

        $restructured_array = array_values($a_map); // a restructured array  

        $nested_array = [$a_map, $an_arr]; // a nested array  

        

                echo gettype($a_bool); // prints out: boolean

        echo var_dump($a_str);  // prints out: string(3) "foo"


        echo gettype($an_arr);  // prints out: array

        echo var_dump($an_arr);  // prints out: array(4) {
  [0]=>
  string(1) "1"
  [1]=>
  int(2)
  [2]=>
  string(1) "1"
  [3]=>
  string(11) "Hello World"
}


        echo var_dump($a_map);  // prints out: array(4) {
  ["number"]=>
  string(1) "1"
  ["integer"]=>
  int(2)
  ["boolean"]=>
  string(1) "1"
  ["string"]=>
  string(11) "Hello World"
}


        echo var_dump($restructured_array);  // prints out: array(4) {
  [0]=>
  string(1) "1"
  [1]=>
  int(2)
  [2]=>
  string(1) "1"
  [3]=>
  string(11) "Hello World"
}


        echo var_dump($nested_array);  // prints out: array(2) {
  [0]=>
  array(4) {
    ["number"]=>
    string(1) "1"
    ["integer"]=>
    int(2)
    ["boolean"]=>
    string(1) "1"
    ["string"]=>
    string(11) "Hello World"
  }
  [1]=>
  array(4) {
    [0]=>
    string(1) "1"
    [1]=>
    int(2)
    [2]=>
    string(1) "1"
    [3]=>
    string(11) "Hello World"
  }
}