PHP(3)Update the Version and Read the Doc Grammar

xian123

　　PHP(3)Update the Version and Read the Doc Grammar

1. Check MAC Software Installation
Check the version of apache
>sudo apachectl -v
Server version: Apache/2.2.26 (Unix) Server built:   Dec 10 2013 22:09:38

Start the Server
>sudo apachectl start

Uncomments this line is /etc/apache2/httpd.conf
LoadModule php5_module libexec/apache2/libphp5.so

Prepare the configuration
>sudo cp php.ini.default php.ini

Prepare the php file
>cat /Library/WebServer/Documents/info.php
<?php phpinfo(); ?>

Visit the page http://localhost/info.php
PHP Version 5.4.24 
I already have my mysql.

I download the file http://us1.php.net/distributions/php-5.5.12.tar.gz

2. PHP Grammer
Link the working directory under apache document root
>sudo ln -s /Users/carl/work/easy/easyphp /Library/WebServer/Documents/easyphp

Array
$arr = array("foo" => 1, 12 => true); 
echo gettype($arr[12]) . "<br />"; 
echo $arr[12]; 

output: 
boolean 
1 

If we did not set the key, it will be the max key + 1.
unset($arr[5]); // This removes the element from the array 
unset($arr);    // This deletes the whole array 

// Create a simple array. 
$array = array(1, 2, 3, 4, 5); 
print_r($array); 
echo "<br />"; 
// Now delete every item, but leave the array itself intact: 
foreach ($array as $i => $v) { 
    unset($array[$i]); 
    echo "unset $i => $v" . "<br />"; 
} 

The array_values() function can be used to 'remove and shift’. 

$arr = array('fruit' => 'apple', 'veggie' => 'carrot'); 
// Correct 
print $arr['fruit']."<br />";  // apple 
print $arr['veggie']."<br />"; // carrot 
// This defines a constant to demonstrate what's going on.  The value 'veggie' 
// is assigned to a constant named fruit. 
define('fruit', 'veggie'); 
// Notice the difference now 
print $arr['fruit']."<br />";  // apple 
print $arr[fruit]."<br />";    // carrot 

<?php 
$a_bool = TRUE;   // a boolean 
$a_str  = "foo";  // a string 
$a_str2 = 'foo';  // a string 
$an_int = 12;     // an integer 

echo gettype($a_bool); // prints out:  boolean 
echo '<br />'; 
echo gettype($a_str);  // prints out:  string 

// If this is an integer, increment it by four 
if (is_int($an_int)) { 
    $an_int += 4; 
} 
echo "<br />"; 
echo $an_int; 
// If $bool is a string, print it out 
// (does not print out anything) 
if (is_string($a_bool)) { 
    echo "String: $a_bool"; 
} 
?> 

class foo 
{ 
    var $foo; 
    var $bar; 

    function foo() 
    { 
        $this->foo = 'Foo'; 
        $this->bar = array('Bar1', 'Bar2', 'Bar3'); 
    } 
} 

$foo = new foo(); 
$name = 'MyName'; 

echo <<<EOT 
My name is "$name". I am printing some $foo->foo. 
Now, I am printing some {$foo->bar[1]}. 
This should print a capital 'A': \x41 
EOT; 
?> 
The above example will output: 

My name is "MyName". I am printing some Foo. 
Now, I am printing some Bar2. 
This should print a capital 'A': A 


References:
PHP(1) ~ (2)
http://sillycat.iteye.com/blog/1543227  win7 php installation and php types
http://sillycat.iteye.com/blog/1638638  MAC php installation

http://sillycat.iteye.com/blog/1040371  PHP installation on ubuntu

PHP(一) ~ (三)
http://sillycat.iteye.com/blog/768664 installation
http://sillycat.iteye.com/blog/769110 hello world
http://sillycat.iteye.com/blog/770369  basic grammer

http://sillycat.iteye.com/blog/731677 ogame source codes setup

http://www.php.net/
http://www.php.net/manual/en/language.types.array.php