1: <?php
  2: /**
  3:  * This file contains various helper functions to read specific values needed for setup checks.
  4:  *
  5:  * @package    Setup
  6:  * @subpackage Helper_PHP
  7:  * @author     Unknown
  8:  * @copyright  four for business AG <www.4fb.de>
  9:  * @license    http://www.contenido.org/license/LIZENZ.txt
 10:  * @link       http://www.4fb.de
 11:  * @link       http://www.contenido.org
 12:  */
 13: 
 14: defined('CON_FRAMEWORK') || die('Illegal call: Missing framework initialization - request aborted.');
 15: 
 16: define('CON_EXTENSION_AVAILABLE', 1);
 17: 
 18: define('CON_EXTENSION_UNAVAILABLE', 2);
 19: 
 20: define('CON_EXTENSION_CANTCHECK', 3);
 21: 
 22: /**
 23:  * Retrieves the setting $setting from the PHP setup.
 24:  * Wrapper to avoid warnings if ini_get is in the
 25:  * disable_functions directive.
 26:  */
 27: function getPHPIniSetting($setting) {
 28:     // Avoid errors if ini_get is in the disable_functions directive
 29:     $value = @ini_get($setting);
 30: 
 31:     return $value;
 32: }
 33: 
 34: /**
 35:  * Checks if PHP is able to use allow_url_fopen.
 36:  */
 37: function canPHPurlfopen() {
 38:     return getPHPIniSetting('allow_url_fopen');
 39: }
 40: 
 41: /**
 42:  * Checks if the ini_get function is available and not disabled.
 43:  * Returns true if the
 44:  * function is available.
 45:  *
 46:  * Uses the PHP configuration value y2k_compilance which is available in all
 47:  * PHP4 versions.
 48:  */
 49: function checkPHPiniget() {
 50:     $value = @ini_get('y2k_compliance');
 51: 
 52:     if ($value === NULL) {
 53:         return false;
 54:     } else {
 55:         return true;
 56:     }
 57: }
 58: 
 59: function getPHPDisplayErrorSetting() {
 60:     return getPHPIniSetting('display_errors');
 61: }
 62: 
 63: function getPHPFileUploadSetting() {
 64:     return getPHPIniSetting('file_uploads');
 65: }
 66: 
 67: function getPHPGPCOrder() {
 68:     return getPHPIniSetting('gpc_order');
 69: }
 70: 
 71: function getPHPMagicQuotesGPC() {
 72:     return getPHPIniSetting('magic_quotes_gpc');
 73: }
 74: 
 75: function getPHPMagicQuotesRuntime() {
 76:     return getPHPIniSetting('magic_quotes_runtime');
 77: }
 78: 
 79: // @todo Check if sybase still needed
 80: function getPHPMagicQuotesSybase() {
 81:     return getPHPIniSetting('magic_quotes_sybase');
 82: }
 83: 
 84: function getPHPMaxExecutionTime() {
 85:     return getPHPIniSetting('max_execution_time');
 86: }
 87: 
 88: function getPHPOpenBasedirSetting() {
 89:     return getPHPIniSetting('open_basedir');
 90: }
 91: 
 92: function getPHPMaxPostSize() {
 93:     return getPHPIniSetting('post_max_size');
 94: }
 95: 
 96: function checkPHPSQLSafeMode() {
 97:     return getPHPIniSetting('sql.safe_mode');
 98: }
 99: 
100: function checkPHPUploadMaxFilesize() {
101:     return getPHPIniSetting('upload_max_filesize');
102: }
103: 
104: function getAsBytes($val) {
105:     if (strlen($val) == 0) {
106:         return 0;
107:     }
108:     $val = trim($val);
109:     $last = $val{strlen($val) - 1};
110:     switch ($last) {
111:         case 'k':
112:         case 'K':
113:             return (int) $val * 1024;
114:             break;
115:         case 'm':
116:         case 'M':
117:             return (int) $val * 1048576;
118:             break;
119:         default:
120:             return $val;
121:     }
122: }
123: 
124: function isPHPExtensionLoaded($extension) {
125:     $value = extension_loaded($extension);
126: 
127:     if ($value === NULL) {
128:         return CON_EXTENSION_CANTCHECK;
129:     }
130: 
131:     return $value === true ? CON_EXTENSION_AVAILABLE : CON_EXTENSION_UNAVAILABLE;
132: }
133: 
134: function isRegisterLongArraysActive() {
135:     if (getPHPIniSetting('register_long_arrays') == false) {
136:         return false;
137:     }
138: 
139:     return true;
140: }
141: 
142: /**
143:  * Checks, if current installed PHP version matches the minimum required PHP version to run CONTENIDO.
144:  * @return bool
145:  */
146: function isPHPCompatible() {
147:     if (version_compare(PHP_VERSION, CON_SETUP_MIN_PHP_VERSION, '>=') == true) {
148:         return true;
149:     } else {
150:         return false;
151:     }
152: }
153: 
154: ?>