zencart全解析(三)

来源：互联网发布：java nginx文件上传编辑：程序博客网时间：2024/04/28 20:29

init vars:

begin processing page-specific actions

if (!isset($_GET['main_page']) || !zen_not_null($_GET['main_page'])) $_GET['main_page'] = 'index';

如果没有设置main_page 并且main_page是空的, $_GET['main_page'] = 'index';

require($language_page_directory . $current_page . '.php');

require('includes/languages/' . $language . '.php');

includes/languages/english/index.php defining language components for the page

includes/languages/english.php defining language components for the page

require($page_directory . '/header_php.php');

require(DIR_WS_INSTALL_TEMPLATE . 'common/html_header.php');

require(DIR_WS_INSTALL_TEMPLATE . 'common/main_template_vars.php');

require(DIR_WS_INSTALL_TEMPLATE . 'common/tpl_main_page.php');

includes/modules/pages/index/header_php.php

Nothing special to do here.

includes/templates/template_default/common/html_header.php <head>

includes/templates/template_default/common/main_template_vars.php

$body_code = DIR_WS_INSTALL_TEMPLATE . 'templates/' . $current_page . '_default.php';

includes/templates/template_default/templates/index_default.php

includes/templates/template_default/common/tpl_main_page.php

require($body_code); Includes/templates/template_default/templates/index_default.php

if ($zc_install->error) include(DIR_WS_INSTALL_TEMPLATE . 'templates/display_errors.php');

Welcome To Zen Cart™

navigation

require(DIR_WS_INSTALL_TEMPLATE . "sideboxes/navigation.php");

includes/templates/template_default/sideboxes/navigation.php

footer Copyright

index.php?main_page=license

includes/languages/english/license.php

includes/languages/english.php

includes/modules/pages/ license /header_php.php

if (isset($_POST['submit'])) {

if (isset($_POST['license_consent']) && $_POST['license_consent'] == 'agree') {

header('location: index.php?main_page=inspect' . zcInstallAddSID() );

exit;

}

if (isset($_POST['license_consent']) && $_POST['license_consent'] == 'disagree') {

header('location: index.php' . zcInstallAddSID() );

exit;

}

$body_code = DIR_WS_INSTALL_TEMPLATE . 'templates/' . $current_page . '_default.php';

includes/templates/template_default/templates/license_default.php

<input type="radio" name="license_consent"

index.php?main_page=inspect

includes/languages/english/inspect.php

includes/languages/english.php

includes/modules/pages/inspect/header_php.php

includes/templates/template_default/templates/inspect_default.php

if (file_exists('../includes/configure.php'))

read the existing configure.php file(s) to get values and guess whether it looks like a valid prior install

read the configure.php file and look for hints that it's just a copy of dist-configure.php

PHP file() 函数把整个文件读入一个数组中。与 file_get_contents() 类似，不同的是 file() 将文件作为一个数组返回。数组中的每个单元都是文件中相应的一行，包括换行符在内。如果失败，则返回 false。

substr_count — 计算字串出现的次数

now check database connectivity

require('../includes/' . 'classes/db/' . $zdb_type . '/query_factory.php');

//reset error-check class after connection attempt

Run System Pre-Flight Check:

WebServer OS as reported by env check

$dir_fs_www_root = $zc_install->detectDocumentRoot();

LABEL_WEBSERVER //WebServer OS as reported by env check

LABEL_HTTP_HOST //General info

LABEL_PATH_TRANLSATED

LABEL_REALPATH

//get list of disabled functions

$disabled_funcs = ini_get("disable_functions");

strstr($disabled_funcs,'disk_free_space') // get free space on disk

LABEL_DISK_FREE_SPACE

LABEL_PHP_OS // Operating System as reported by PHP:

LABEL_PHP_API_MODE apache2handler //PHP mode (module, cgi, etc)

//Set Time Limit setting

LABEL_SET_TIME_LIMIT

//get list of disabled functions

if (!zen_not_null($disabled_funcs)) $disabled_funcs = ini_get("disable_functions");

else WARN

Check Register Globals LABEL_REGISTER_GLOBALS

//Check MySQL version LABEL_MYSQL_AVAILABLE

//DB Privileges

if (false) { // DISABLED THIS CODEBLOCK FOR NOW....

//PHP Version Check LABEL_PHP_VER

// SAFE MODE check LABEL_SAFE_MODE

//PHP support for Sessions check LABEL_PHP_EXT_SESSIONS

//session.auto_start check LABEL_PHP_SESSION_AUTOSTART

//session.trans_sid check LABEL_PHP_SESSION_TRANS_SID

// Check for 'tmp' folder for file-based caching. This checks numerous places, and tests actual writing of a file to those folders.

LABEL_PHP_EXT_SAVE_PATH

//check various options for cache storage:

//foreach (array(@ini_get("session.save_path"), '/tmp', '/var/lib/php/session', $dir_fs_www_root . '/tmp', $dir_fs_www_root . '/cache', 'c:/php/tmp', 'c:/php/sessiondata', 'c:/windows/temp', 'c:/temp') as $cache_test) {

$zc_install->setConfigKey('DIR_FS_SQL_CACHE', $suggested_cache);

LABEL_CURRENT_CACHE_PATH

//PHP MagicQuotesRuntime LABEL_PHP_MAG_QT_RUN

//PHP MagicQuotesSybase LABEL_PHP_MAG_QT_SYBASE

//PHP GD support check LABEL_PHP_EXT_GD

//check for zLib Compression Support LABEL_PHP_EXT_ZLIB

//Check for OpenSSL support (only relevant for Apache) LABEL_PHP_EXT_OPENSSL

//Check for CURL support (ie: for payment/shipping gateways) LABEL_PHP_EXT_CURL

// check for actual CURL operation

$curl_nonssl_test = $zc_install->test_curl('NONSSL');

$curl_ssl_test = $zc_install->test_curl('SSL');

Test CURL communications returns string

function test_curl($mode='NONSSL', $proxy = false, $proxyAddress = '')

$url = ($mode == 'NONSSL') ? "http://www.zen-cart.com/testcurl.php" : "https://www.zen-cart.com/testcurl.php";

www.zen-cart.com 网站打不开,

return OKAY;

// return ($mode == 'NONSSL' ? ERROR_TEXT_CURL_PROBLEM_GENERAL : ERROR_TEXT_CURL_SSL_PROBLEM) . ' ' . $response;

//Check for upload support built in to PHP LABEL_PHP_UPLOAD_STATUS

//Upload TMP dir setting LABEL_UPLOAD_TMP_DIR

//Check for XML Support LABEL_XML_SUPPORT

// PHP output buffering (GZip) (PHP configuration) LABEL_GZIP

//Check PostgreSQL availability 注释掉了

//OpenBaseDir setting

// read restrictions, and check whether the working folder falls within the list of restricted areas

LABEL_OPEN_BASEDIR

//Sendmail-From setting (PHP configuration) LABEL_SENDMAIL_FROM

//Sendmail Path setting (PHP configuration) LABEL_SENDMAIL_PATH

//SMTP (vs sendmail) setting (PHP configuration) LABEL_SMTP_MAIL

//include_path (PHP configuration) LABEL_INCLUDE_PATH

// reverse the order for slightly more pleasant display

$status_check2 = array_reverse($status_check2);

array_reverse -- 返回一个单元顺序相反的数组

// error-condition-detection

$php_extensions = get_loaded_extensions();

get_loaded_extensions — Returns an array with the names of all modules compiled and loaded

<?php
print_r ( get_loaded_extensions ());
?>

上例的输出类似于：

Array

(

[0] => xml

[1] => wddx

[2] => standard

[3] => session

[4] => posix

[5] => pgsql

[6] => pcre

[7] => gd

[8] => ftp

[9] => db

[10] => calendar

[11] => bcmath

)

$admin_config_exists = $zc_install->test_admin_configure

$store_config_exists = $zc_install->test_store_configure

// don't restrict ability to proceed with installation if upgrading the database w/o touching configure.php files is a suitable option

// do we override the fatal error caused by configure.php files not being writable? Automatic for Windows hosts, due to the complexities of permissions on Windoze

// now check for writability of the configure.php files (after capturing fatal_error status above).

//check folders status

// disable Install/Upgrade buttons if fatal error discovered

// record system inspection results

$data = substr($data, 0, -2); // remove trailing comma