Kaylyn's code output for Strings:

Strings Revisited

The string is: -- Sometimes good people do bad things. --note: there are spaces at the start and end of the string

How many characters? 38

Character (ASCII[101]) --e-- POSITION: 4
Character (ASCII[116]) --t-- POSITION: 5
Character (ASCII[105]) --i-- POSITION: 6
Character (ASCII[109]) --m-- POSITION: 7
Character (ASCII[101]) --e-- POSITION: 8
Character (ASCII[115]) --s-- POSITION: 9
Character (ASCII[32]) -- -- POSITION: 10
Character (ASCII[103]) --g-- POSITION: 11
Character (ASCII[111]) --o-- POSITION: 12
Character (ASCII[111]) --o-- POSITION: 13
Character (ASCII[100]) --d-- POSITION: 14
Character (ASCII[32]) -- -- POSITION: 15
Character (ASCII[112]) --p-- POSITION: 16
Character (ASCII[101]) --e-- POSITION: 17
Character (ASCII[111]) --o-- POSITION: 18
Character (ASCII[112]) --p-- POSITION: 19
Character (ASCII[108]) --l-- POSITION: 20
Character (ASCII[101]) --e-- POSITION: 21
Character (ASCII[32]) -- -- POSITION: 22
Character (ASCII[100]) --d-- POSITION: 23
Character (ASCII[111]) --o-- POSITION: 24
Character (ASCII[32]) -- -- POSITION: 25
Character (ASCII[98]) --b-- POSITION: 26
Character (ASCII[97]) --a-- POSITION: 27
Character (ASCII[100]) --d-- POSITION: 28
Character (ASCII[32]) -- -- POSITION: 29
Character (ASCII[116]) --t-- POSITION: 30
Character (ASCII[104]) --h-- POSITION: 31
Character (ASCII[105]) --i-- POSITION: 32
Character (ASCII[110]) --n-- POSITION: 33
Character (ASCII[103]) --g-- POSITION: 34
Character (ASCII[115]) --s-- POSITION: 35
Character (ASCII[46]) --.-- POSITION: 36
Character (ASCII[32]) -- -- POSITION: 37


The first 's' is in position: 1

The first 'd' is in position: 14

Place the string Sometimes good people do bad things. into the second index of an array
The string located at the second index of the array is: Sometimes good people do bad things.
The fifth character of the Sometimes good people do bad things. string at the second index of the array is: t

Sometimes good people do bad things. Sometimes good people do bad things. Sometimes good people do bad things.

--- Sometimes good people do bad things. ---

---Sometimes good people do bad things.---

encrypt of Sometimes good people do bad things. is: xxwSjyfcd9QtE

md5 for Sometimes good people do bad things. : eb52fe20da491f88849f9bbf5394d657

Explode the string  Sometimes good people do bad things.  into an array
Array
(
    [0] => 
    [1] => Sometimes
    [2] => good
    [3] => people
    [4] => do
    [5] => bad
    [6] => things.
    [7] => 
)

Implode the array back into a string: Sometimes good people do bad things.

---

CODE FOLLOWS

<?php
include('includes/header.php');

error_reporting(E_ALL);

echo("<h1>Kaylyn's code output for Strings:</h1>");

echo('<h2>Strings Revisited</h2>');

$hw = ' Sometimes good people do bad things. ';    // <- note spaces before and after the string
echo("The string is: --$hw--note: there are spaces at the start and end of the string");
echo('<br><br>');

$a = strlen($hw);    // find the length of the string
echo("How many characters? $a");
echo('<br><br>');

for($i = 4; $i < $a; $i++)
{
    $ord= ord($hw[$i]);
    echo("Character (ASCII[$ord]) --$hw[$i]-- POSITION: $i");
    echo('<br>');
}
echo('<br><br>');

$b = stripos($hw, 's');        // where is the first 'l' in the string
echo("The first 's' is in position: $b");
echo('<br><br>');

$b = stripos($hw, 'd');        // where is the first 'd' in the string
echo("The first 'd' is in position: $b");
echo('<br><br>');

$b = array();        // create an array
echo("Place the string $hw into the second index of an array");
echo('<br>');
$b[3] = $hw;        // place ' Hello World ' in index 2
echo("The string located at the second index of the array is: $b[3]");
echo('<br>');
echo("The fifth character of the $hw string at the second index of the array is: " . $b[3][5] );
echo('<br><br>');

echo(str_repeat($hw, 3));    // repeat Hello World three times
echo('<br><br>');

echo("---$hw---");        // show the spaces at the start and end of the string
echo('<br><br>');
$b = trim($hw);        // remove the spaces at the start and end of the string
echo("---$b---");
echo('<br><br>');

$salt = "xx";
$f = crypt($hw, $salt);        // encrypt the string
echo("encrypt of $hw is: $f");
echo('<br><br>');

$f = md5($hw);        // md5 the string
echo(" md5 for $hw : $f");
echo('<br><br>');

$c = array();        // create an array
$c = explode(' ', $hw);    // explode the string into an array
echo('<pre>');
echo("Explode the string $hw into an array<br>");
print_r($c);        // show the array
echo('</pre>');

$d = implode(' ', $c);    // implode the array back into a string (corrected order of arguments)
echo("Implode the array back into a string: $d");    // show the string
echo('<br><br>');

include('includes/footer.php');
?>

---