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C CakePHP 2.6 API

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Classes

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 1: <?php
 2: /**
 3:  * ConsoleInput file.
 4:  *
 5:  * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
 6:  * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
 7:  *
 8:  * Licensed under The MIT License
 9:  * For full copyright and license information, please see the LICENSE.txt
10:  * Redistributions of files must retain the above copyright notice.
11:  *
12:  * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
13:  * @link          http://cakephp.org CakePHP(tm) Project
14:  * @package       Cake.Console
15:  * @since         CakePHP(tm) v 2.0
16:  * @license       http://www.opensource.org/licenses/mit-license.php MIT License
17:  */
18: 
19: /**
20:  * Object wrapper for interacting with stdin
21:  *
22:  * @package       Cake.Console
23:  */
24: class ConsoleInput {
25: 
26: /**
27:  * Input value.
28:  *
29:  * @var resource
30:  */
31:     protected $_input;
32: 
33: /**
34:  * Can this instance use readline?
35:  * Two conditions must be met:
36:  * 1. Readline support must be enabled.
37:  * 2. Handle we are attached to must be stdin.
38:  * Allows rich editing with arrow keys and history when inputting a string.
39:  *
40:  * @var bool
41:  */
42:     protected $_canReadline;
43: 
44: /**
45:  * Constructor
46:  *
47:  * @param string $handle The location of the stream to use as input.
48:  */
49:     public function __construct($handle = 'php://stdin') {
50:         $this->_canReadline = extension_loaded('readline') && $handle === 'php://stdin' ? true : false;
51:         $this->_input = fopen($handle, 'r');
52:     }
53: 
54: /**
55:  * Read a value from the stream
56:  *
57:  * @return mixed The value of the stream
58:  */
59:     public function read() {
60:         if ($this->_canReadline) {
61:             $line = readline('');
62:             if (!empty($line)) {
63:                 readline_add_history($line);
64:             }
65:             return $line;
66:         }
67:         return fgets($this->_input);
68:     }
69: 
70: /**
71:  * Checks if data is available on the stream
72:  *
73:  * @param int $timeout An optional time to wait for data
74:  * @return bool True for data available, false otherwise
75:  */
76:     public function dataAvailable($timeout = 0) {
77:         $readFds = array($this->_input);
78:         $readyFds = stream_select($readFds, $writeFds, $errorFds, $timeout);
79:         return ($readyFds > 0);
80:     }
81: 
82: }
83: 
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