function OX_increaseMemoryLimit($setMemory)
{
$phpMemoryLimitInBytes = OX_getMemoryLimitSizeInBytes();
if ($phpMemoryLimitInBytes == -1) {
return true;
}
if ($setMemory > $phpMemoryLimitInBytes) {
if (@ini_set('memory_limit', $setMemory) === false) {
return false;
}
}
return true;
}
/**
* A private method to test the configuration of the user's PHP environment.#
*
* Tests the following values, and in the event of a fatal error or a
* warning, the value set is listed below:
*
* - The PHP version
* Sets: $this->aInfo['PHP']['warning']['version']
*
* - The PHP configuration's memory_limit value
* Sets: $this->aInfo['PHP']['warning']['memory_limit']
*
* - The PHP configuration's safe_mode value
* Sets: $this->aInfo['PHP']['error']['safe_mode']
*
* - The PHP configuration's magic_quotes_runtime value
* Sets: $this->aInfo['PHP']['error']['magic_quotes_runtime']
*
* - The PHP configuration's file_uploads value
* Sets: $this->aInfo['PHP']['error']['file_uploads']
*
* - The PHP configuration's pcre extension
* Sets: $this->aInfo['PHP']['error']['pcre']
*
* - The PHP configuration's xml extension
* Sets: $this->aInfo['PHP']['error']['xml']
*
* - The PHP configuration's zlib extension
* Sets: $this->aInfo['PHP']['error']['zlib']
*
* - The PHP configuration's database (both mysql and pgsql) extensions
* Sets: $this->aInfo['PHP']['error']['mysql']
*
* - The PHP configuration's spl extension
* Sets: $this->aInfo['PHP']['error']['spl']
*
* - The PHP configuration's timeout settings
* Sets: $this->aInfo['PHP']['error']['timeout']
*
* Otherwise, if there are no errors or warnings, then $this->aInfo['PHP']['error']
* is set to "false".
*
* @access private
* @return integer One of the following values:
* - OA_ENV_ERROR_PHP_NOERROR
* - OA_ENV_ERROR_PHP_VERSION
* - OA_ENV_ERROR_PHP_SAFEMODE
* - OA_ENV_ERROR_PHP_MAGICQ
* Note that sometimes an error value is returned, sometimes
* not, even if there is an actual error - this appears to be
* a historical hangover, where the information set in the
* $this->aInfo array has gradually assumed more importance
* than the return value.
*
* @TODO Address the return value oddness, by removing all return values, and
* simply rely on the $this->aInfo array, perhaps?
*/
function _checkCriticalPHP()
{
// Test the PHP version
if (!function_exists('version_compare')) {
// The user's PHP version is very old - it doesn't
// even have the version_compare() function!
$result = OA_ENV_ERROR_PHP_VERSION;
} else {
if (version_compare($this->aInfo['PHP']['actual']['version'], $this->aInfo['PHP']['expected']['version'], "<")) {
$result = OA_ENV_ERROR_PHP_VERSION;
} else {
$result = OA_ENV_ERROR_PHP_NOERROR;
}
}
if ($result == OA_ENV_ERROR_PHP_VERSION) {
$this->aInfo['PHP']['warning']['version'] = "Version {$this->aInfo['PHP']['actual']['version']} is below the minimum supported version of {$this->aInfo['PHP']['expected']['version']}." . "<br />You should upgrade your PHP to at least {$this->aInfo['PHP']['expected']['version']} in order to install " . PRODUCT_NAME . ". " . "Please see the <a href='" . PRODUCT_DOCSURL . "/faq'>FAQ</a> for more information.";
} else {
$this->aInfo['PHP']['error'] = false;
}
// Test the original memory_limit
if (!$this->checkOriginalMemory()) {
$this->aInfo['PHP']['warning']['memory_limit'] = PRODUCT_NAME . " requires a minimum of " . OX_getMemoryLimitSizeInBytes() / 1048576 . " MB to run successfully, although " . "some parts of the application will increase this limitation if required. The current 'memory_limit' value is set to " . $this->aInfo['PHP']['actual']['original_memory_limit'] / 1048576 . " MB, so " . PRODUCT_NAME . " has automatically increased " . "this limit. If possible, please increase the 'memory_limit' value in your server's php.ini file to a minimum of " . OX_getMemoryLimitSizeInBytes() / 1048576 . " MB before continuing.";
}
// Ensure that the original memory_limit is not displayed in the systems screen
unset($this->aInfo['PHP']['actual']['original_memory_limit']);
// Test the PHP configuration's safe_mode value
if ($this->aInfo['PHP']['actual']['safe_mode']) {
$result = OA_ENV_ERROR_PHP_SAFEMODE;
$this->aInfo['PHP']['error']['safe_mode'] = 'The safe_mode option must be OFF';
}
// Test the PHP configuration's magic_quotes_runtime value
if ($this->aInfo['PHP']['actual']['magic_quotes_runtime']) {
$result = OA_ENV_ERROR_PHP_MAGICQ;
$this->aInfo['PHP']['error']['magic_quotes_runtime'] = 'The magic_quotes_runtime option must be OFF';
}
// Test the PHP configuration's file_uploads value
if (!$this->aInfo['PHP']['actual']['file_uploads']) {
$this->aInfo['PHP']['error']['file_uploads'] = 'The file_uploads option must be ON';
}
// Test the required PHP extensions are loaded
if (!$this->aInfo['PHP']['actual']['pcre']) {
$this->aInfo['PHP']['error']['pcre'] = 'The pcre extension must be loaded';
}
if (!$this->aInfo['PHP']['actual']['xml']) {
$this->aInfo['PHP']['error']['xml'] = 'The xml extension must be loaded';
}
if (!$this->aInfo['PHP']['actual']['zlib']) {
$this->aInfo['PHP']['error']['zlib'] = 'The zlib extension must be loaded';
}
if (!($this->aInfo['PHP']['actual']['mysql'] || $this->aInfo['PHP']['actual']['pgsql'])) {
$this->aInfo['PHP']['error']['mysql'] = 'Either the mysql or the pgsql extension must be loaded';
}
if (!$this->aInfo['PHP']['actual']['spl']) {
$this->aInfo['PHP']['error']['spl'] = 'The spl extension must be loaded';
}
if ($this->aInfo['PHP']['actual']['mbstring.func_overload']) {
$this->aInfo['PHP']['error']['mbstring.func_overload'] = 'mbstring function overloading must be disabled';
}
if ($this->aInfo['PHP']['actual']['timeout']) {
$this->aInfo['PHP']['error']['timeout'] = 'The PHP function set_time_limit() has been disabled and ' . 'max_execution_time is set to ' . $this->aInfo['PHP']['actual']['timeout'] . ' which may cause problems with functionality such as maintenance';
}
if (!empty($this->aInfo['PHP']['error'])) {
$this->aInfo['PHP']['error']['badPhpConfiguration'] = $GLOBALS['strSystemCheckBadPHPConfig'];
}
return $result;
}
/**
* A private method to test the configuration of the user's PHP environment.#
*
* Tests the following values, and in the event of a fatal error or a
* warning, the value set is listed below:
*
* - The PHP version
* Sets: $this->aInfo['PHP']['warning'][OA_ENV_ERROR_PHP_VERSION]
*
* - The PHP configuration's memory_limit value
* Sets: $this->aInfo['PHP']['warning'][OA_ENV_WARNING_MEMORY]
*
* - The PHP configuration's safe_mode value
* Sets: $this->aInfo['PHP']['error'][OA_ENV_ERROR_PHP_SAFEMODE]
*
* - The PHP configuration's magic_quotes_runtime value
* Sets: $this->aInfo['PHP']['error'][OA_ENV_ERROR_PHP_MAGICQ]
*
* - The PHP configuration's file_uploads value
* Sets: $this->aInfo['PHP']['error'][OA_ENV_ERROR_PHP_UPLOADS]
*
* - The PHP configuration's pcre extension
* Sets: $this->aInfo['PHP']['error'][OA_ENV_ERROR_PHP_PCRE]
*
* - The PHP configuration's xml extension
* Sets: $this->aInfo['PHP']['error'][OA_ENV_ERROR_PHP_XML]
*
* - The PHP configuration's zlib extension
* Sets: $this->aInfo['PHP']['error'][OA_ENV_ERROR_PHP_ZLIB]
*
* - The PHP configuration's database (both mysql and pgsql) extensions
* Sets: $this->aInfo['PHP']['error'][OA_ENV_ERROR_PHP_MYSQL]
*
* - The PHP configuration's timeout settings
* Sets: $this->aInfo['PHP']['error'][OA_ENV_ERROR_PHP_TIMEOUT]
*
* Otherwise, if there are no errors or warnings, then $this->aInfo['PHP']['error']
* is set to "false".
*
* @access private
* @return integer One of the following values:
* - OA_ENV_ERROR_PHP_NOERROR
* - OA_ENV_ERROR_PHP_VERSION
* - OA_ENV_ERROR_PHP_VERSION_NEWER
* - OA_ENV_ERROR_PHP_SAFEMODE
* - OA_ENV_ERROR_PHP_MAGICQ
* Note that sometimes an error value is returned, sometimes
* not, even if there is an actual error - this appears to be
* a historical hangover, where the information set in the
* $this->aInfo array has gradually assumed more importance
* than the return value.
*
* @TODO Address the return value oddness, by removing all return values, and
* simply rely on the $this->aInfo array, perhaps?
*/
function _checkCriticalPHP()
{
// Test the PHP version
if (function_exists('version_compare')) {
$result = version_compare($this->aInfo['PHP']['actual']['version'], $this->aInfo['PHP']['expected']['version'], "<");
if ($result) {
$result = OA_ENV_ERROR_PHP_VERSION;
} elseif (!empty($this->aInfo['PHP']['expected']['version_new'])) {
$result = version_compare($this->aInfo['PHP']['actual']['version'], $this->aInfo['PHP']['expected']['version_new'], ">=");
if ($result) {
$result = OA_ENV_ERROR_PHP_VERSION_NEWER;
} else {
$result = OA_ENV_ERROR_PHP_NOERROR;
}
} else {
$result = OA_ENV_ERROR_PHP_NOERROR;
}
} else {
// The user's PHP version is well old - it doesn't
// even have the version_compare() function!
$result = OA_ENV_ERROR_PHP_VERSION;
}
if ($result == OA_ENV_ERROR_PHP_VERSION) {
$this->aInfo['PHP']['warning'][OA_ENV_ERROR_PHP_VERSION] = "Version {$this->aInfo['PHP']['actual']['version']} is below the minimum supported version of {$this->aInfo['PHP']['expected']['version']}." . "<br />Although you can install OpenX, this is not a supported version, and it is not possible to guarantee that everything will work correctly. " . "Please see the <a href='" . OX_PRODUCT_DOCSURL . "/faq/php-unsupported'>FAQ</a> for more information.";
} elseif ($result == OA_ENV_ERROR_PHP_VERSION_NEWER) {
$this->aInfo['PHP']['warning'][OA_ENV_ERROR_PHP_VERSION_NEWER] = "Version {$this->aInfo['PHP']['actual']['version']} is not supported yet." . "<br />Although you can install OpenX, this is not a supported version, and it is not possible to guarantee that everything will work correctly. " . "Please see the <a href='" . OX_PRODUCT_DOCSURL . "/faq/php-unsupported'>FAQ</a> for more information.";
} else {
$this->aInfo['PHP']['error'] = false;
}
// Test the original memory_limit
if (!$this->checkOriginalMemory()) {
$this->aInfo['PHP']['warning'][OA_ENV_WARNING_MEMORY] = MAX_PRODUCT_NAME . " requires a minimum of " . OX_getMemoryLimitSizeInBytes() / 1048576 . " MB to run successfully, although " . "some parts of the application will increase this limitation if required. The current 'memory_limit' value is set to " . $this->aInfo['PHP']['actual']['original_memory_limit'] / 1048576 . " MB, so " . MAX_PRODUCT_NAME . " has automatically increased " . "this limit. If possible, please increase the 'memory_limit' value in your server's php.ini file to a minimum of " . OX_getMemoryLimitSizeInBytes() / 1048576 . " MB before continuing.";
}
// Ensure that the original memory_limit is not displayed in the systems screen
unset($this->aInfo['PHP']['actual']['original_memory_limit']);
// Test the PHP configuration's safe_mode value
if ($this->aInfo['PHP']['actual']['safe_mode']) {
$result = OA_ENV_ERROR_PHP_SAFEMODE;
$this->aInfo['PHP']['error'][OA_ENV_ERROR_PHP_SAFEMODE] = 'The safe_mode option must be OFF';
}
// Test the PHP configuration's magic_quotes_runtime value
if ($this->aInfo['PHP']['actual']['magic_quotes_runtime']) {
$result = OA_ENV_ERROR_PHP_MAGICQ;
$this->aInfo['PHP']['error'][OA_ENV_ERROR_PHP_MAGICQ] = 'The magic_quotes_runtime option must be OFF';
}
// Test the PHP configuration's file_uploads value
if (!$this->aInfo['PHP']['actual']['file_uploads']) {
$this->aInfo['PHP']['error'][OA_ENV_ERROR_PHP_UPLOADS] = 'The file_uploads option must be ON';
}
// Test the required PHP extensions are loaded
if (!$this->aInfo['PHP']['actual']['pcre']) {
$this->aInfo['PHP']['error'][OA_ENV_ERROR_PHP_PCRE] = 'The pcre extension must be loaded';
}
if (!$this->aInfo['PHP']['actual']['xml']) {
$this->aInfo['PHP']['error'][OA_ENV_ERROR_PHP_XML] = 'The xml extension must be loaded';
}
if (!$this->aInfo['PHP']['actual']['zlib']) {
$this->aInfo['PHP']['error'][OA_ENV_ERROR_PHP_ZLIB] = 'The zlib extension must be loaded';
}
if (!($this->aInfo['PHP']['actual']['mysql'] || $this->aInfo['PHP']['actual']['pgsql'])) {
$this->aInfo['PHP']['error'][OA_ENV_ERROR_PHP_MYSQL] = 'Either the mysql or the pgsql extension must be loaded';
}
if ($this->aInfo['PHP']['actual']['timeout']) {
$this->aInfo['PHP']['error'][OA_ENV_ERROR_PHP_TIMEOUT] = 'The PHP function set_time_limit() has been disabled and ';
$this->aInfo['PHP']['error'][OA_ENV_ERROR_PHP_TIMEOUT] .= 'max_execution_time is set to ' . $this->aInfo['PHP']['actual']['timeout'] . ' which may cause problems with functionality such as maintenance';
}
return $result;
}
/**
* A private method to test the configuration of the user's PHP environment.#
*
* Tests the following values, and in the event of a fatal error or a
* warning, the value set is listed below:
*
* - The PHP version
* Sets: $this->aInfo['PHP']['warning']['version']
*
* - The PHP configuration's memory_limit value
* Sets: $this->aInfo['PHP']['warning']['memory_limit']
*
* - The PHP configuration's safe_mode value
* Sets: $this->aInfo['PHP']['error']['safe_mode']
*
* - The PHP configuration's magic_quotes_runtime value
* Sets: $this->aInfo['PHP']['error']['magic_quotes_runtime']
*
* - The PHP configuration's file_uploads value
* Sets: $this->aInfo['PHP']['error']['file_uploads']
*
* - The PHP configuration's pcre extension
* Sets: $this->aInfo['PHP']['error']['pcre']
*
* - The PHP configuration's xml extension
* Sets: $this->aInfo['PHP']['error']['xml']
*
* - The PHP configuration's zlib extension
* Sets: $this->aInfo['PHP']['error']['zlib']
*
* - The PHP configuration's database (both mysql and pgsql) extensions
* Sets: $this->aInfo['PHP']['error']['mysql']
*
* - The PHP configuration's spl extension
* Sets: $this->aInfo['PHP']['error']['spl']
*
* - The PHP configuration's timeout settings
* Sets: $this->aInfo['PHP']['error']['timeout']
*
* Otherwise, if there are no errors or warnings, then $this->aInfo['PHP']['error']
* is set to "false".
*
* @access private
* @return integer One of the following values:
* - OA_ENV_ERROR_PHP_NOERROR
* - OA_ENV_ERROR_PHP_VERSION
* - OA_ENV_ERROR_PHP_VERSION_54
* - OA_ENV_ERROR_PHP_VERSION_55
* - OA_ENV_ERROR_PHP_SAFEMODE
* - OA_ENV_ERROR_PHP_MAGICQ
* Note that sometimes an error value is returned, sometimes
* not, even if there is an actual error - this appears to be
* a historical hangover, where the information set in the
* $this->aInfo array has gradually assumed more importance
* than the return value.
*
* @TODO Address the return value oddness, by removing all return values, and
* simply rely on the $this->aInfo array, perhaps?
*/
function _checkCriticalPHP()
{
// Due to https://bugs.php.net/bug.php?id=65367 we need to blacklist PHP
// 5.4.0-5.4.19 and 5.5.0-5.5.1
// Test the PHP version
if (function_exists('version_compare')) {
if (version_compare($this->aInfo['PHP']['actual']['version'], $this->aInfo['PHP']['expected']['version'], "<")) {
$result = OA_ENV_ERROR_PHP_VERSION;
} elseif (version_compare($this->aInfo['PHP']['actual']['version'], '5.4.0', ">=") && version_compare($this->aInfo['PHP']['actual']['version'], '5.4.20', "<")) {
if (preg_match('#^5\\.4\\.4-14\\+deb7u(\\d+)$#', $this->aInfo['PHP']['actual']['version'], $m) && $m[1] >= 9) {
// Thanks Debian for backporting the fix into 5.4.4-14+deb7u9
$result = OA_ENV_ERROR_PHP_NOERROR;
} else {
$result = OA_ENV_ERROR_PHP_VERSION_54;
}
} elseif (version_compare($this->aInfo['PHP']['actual']['version'], '5.5.0', ">=") && version_compare($this->aInfo['PHP']['actual']['version'], '5.5.2', "<")) {
$result = OA_ENV_ERROR_PHP_VERSION_55;
} else {
$result = OA_ENV_ERROR_PHP_NOERROR;
}
} else {
// The user's PHP version is well old - it doesn't
// even have the version_compare() function!
$result = OA_ENV_ERROR_PHP_VERSION;
}
if ($result == OA_ENV_ERROR_PHP_VERSION) {
$this->aInfo['PHP']['warning']['version'] = "Version {$this->aInfo['PHP']['actual']['version']} is below the minimum supported version of {$this->aInfo['PHP']['expected']['version']}." . "<br />Although you can install " . PRODUCT_NAME . ", this is not a supported version, and it is not possible to guarantee that everything will work correctly. " . "Please see the <a href='" . PRODUCT_DOCSURL . "/faq'>FAQ</a> for more information.";
} elseif ($result == OA_ENV_ERROR_PHP_VERSION_54 || $result == OA_ENV_ERROR_PHP_VERSION_55) {
$this->aInfo['PHP']['error']['version'] = "Version {$this->aInfo['PHP']['actual']['version']} is not supported due to a bug that prevents " . PRODUCT_NAME . " from working properly." . "<br />You should upgrade your PHP to at least 5.4.20 or 5.5.2 in order to propery install " . PRODUCT_NAME . ". " . "Please see the <a href='" . PRODUCT_DOCSURL . "/faq'>FAQ</a> for more information.";
// Exit immediately
return $result;
} else {
$this->aInfo['PHP']['error'] = false;
}
// Test the original memory_limit
if (!$this->checkOriginalMemory()) {
$this->aInfo['PHP']['warning']['memory_limit'] = PRODUCT_NAME . " requires a minimum of " . OX_getMemoryLimitSizeInBytes() / 1048576 . " MB to run successfully, although " . "some parts of the application will increase this limitation if required. The current 'memory_limit' value is set to " . $this->aInfo['PHP']['actual']['original_memory_limit'] / 1048576 . " MB, so " . PRODUCT_NAME . " has automatically increased " . "this limit. If possible, please increase the 'memory_limit' value in your server's php.ini file to a minimum of " . OX_getMemoryLimitSizeInBytes() / 1048576 . " MB before continuing.";
}
// Ensure that the original memory_limit is not displayed in the systems screen
unset($this->aInfo['PHP']['actual']['original_memory_limit']);
// Test the PHP configuration's safe_mode value
if ($this->aInfo['PHP']['actual']['safe_mode']) {
$result = OA_ENV_ERROR_PHP_SAFEMODE;
$this->aInfo['PHP']['error']['safe_mode'] = 'The safe_mode option must be OFF';
}
// Test the PHP configuration's magic_quotes_runtime value
if ($this->aInfo['PHP']['actual']['magic_quotes_runtime']) {
$result = OA_ENV_ERROR_PHP_MAGICQ;
$this->aInfo['PHP']['error']['magic_quotes_runtime'] = 'The magic_quotes_runtime option must be OFF';
}
// Test the PHP configuration's file_uploads value
if (!$this->aInfo['PHP']['actual']['file_uploads']) {
$this->aInfo['PHP']['error']['file_uploads'] = 'The file_uploads option must be ON';
}
// Test the required PHP extensions are loaded
if (!$this->aInfo['PHP']['actual']['pcre']) {
$this->aInfo['PHP']['error']['pcre'] = 'The pcre extension must be loaded';
}
if (!$this->aInfo['PHP']['actual']['xml']) {
$this->aInfo['PHP']['error']['xml'] = 'The xml extension must be loaded';
}
if (!$this->aInfo['PHP']['actual']['zlib']) {
$this->aInfo['PHP']['error']['zlib'] = 'The zlib extension must be loaded';
}
if (!($this->aInfo['PHP']['actual']['mysql'] || $this->aInfo['PHP']['actual']['pgsql'])) {
$this->aInfo['PHP']['error']['mysql'] = 'Either the mysql or the pgsql extension must be loaded';
}
if (!$this->aInfo['PHP']['actual']['spl']) {
$this->aInfo['PHP']['error']['spl'] = 'The spl extension must be loaded';
}
if ($this->aInfo['PHP']['actual']['mbstring.func_overload']) {
$this->aInfo['PHP']['error']['mbstring.func_overload'] = 'mbstring function overloading must be disabled';
}
if ($this->aInfo['PHP']['actual']['timeout']) {
$this->aInfo['PHP']['error']['timeout'] = 'The PHP function set_time_limit() has been disabled and ' . 'max_execution_time is set to ' . $this->aInfo['PHP']['actual']['timeout'] . ' which may cause problems with functionality such as maintenance';
}
if (!empty($this->aInfo['PHP']['error'])) {
$this->aInfo['PHP']['error']['badPhpConfiguration'] = $GLOBALS['strSystemCheckBadPHPConfig'];
}
return $result;
}
/**
* Check for situation when installing or using software is eithe
* imposible, or results in unformated error output, due to system
* configuration.
*
* @param &$aErrors Array of error mesages. All errors that it is possible to
* detect will be set, regardless of the function return value.
* @return bool|int True on system check OK, negative int value on detected problems.
* -1 => The "function_exists" built-in function doesn't exist
* -2 => At least one of the "strpos" or "parse_url" built-in
* functions don't exist
* -3 => One of the other required built-in functions was
* detected as being disabled
* -4 => The amount of memory required was too low
*
*/
function RV_checkSystemInitialRequirements(&$aErrors)
{
// Variables for tracking if the test has passed or not,
// and if not, what value to return
$isSystemOK = true;
$return = true;
// The general list of built in PHP functions that are required to
// run Revive Adserver, apart from the functions:
//
// - "function_exists"
// - "array_intersect"
// - "explode"
// - "ini_get"
// - "trim"
// - "parse_url"
// - "strpos"
//
// These other functions are tested separately, as they are
// required to test for the existence of the functions in the
// array below!
$aRequiredFunctions = array('dirname', 'empty', 'file_exists', 'ini_set', 'parse_ini_file', 'version_compare', 'set_include_path');
// Prepare error strings, in the simplest possible way
$errorString1 = 'The built in PHP function "';
$errorString2 = '" is in the "disable_functions" list in your "php.ini" file.';
// Need "function_exists" to be able to test for functions required
// for testing what is in the "disabled_functions" list
if (!function_exists('function_exists')) {
$aErrors[] = $errorString1 . 'function_exists' . $errorString2;
// Cannot detect any more errors, as function_exists is
// needed to detect the required functions!
return -1;
}
// Test for existence of "parse_url" and "strpos", which are
// special cases required for the display of the error message
// in the event of anything failing in this test!
if (!function_exists('parse_url')) {
$aErrors[] = $errorString1 . 'parse_url' . $errorString2;
$isSystemOK = false;
if ($return === true) {
$return = -2;
}
}
if (!function_exists('strpos')) {
$aErrors[] = $errorString1 . 'strpos' . $errorString2;
$isSystemOK = false;
if ($return === true) {
$return = -2;
}
}
// Test for existence of "array_intersect", "explode", "ini_get"
// and "trim", which are all required as part of the code to test
// which functions are in the "disabled_functions" list below...
if (!function_exists('array_intersect')) {
$aErrors[] = $errorString1 . 'array_intersect' . $errorString2;
$isSystemOK = false;
if ($return === true) {
$return = -3;
}
}
if (!function_exists('explode')) {
$aErrors[] = $errorString1 . 'explode' . $errorString2;
$isSystemOK = false;
if ($return === true) {
$return = -3;
}
}
if (!function_exists('ini_get')) {
$aErrors[] = $errorString1 . 'ini_get' . $errorString2;
$isSystemOK = false;
if ($return === true) {
$return = -3;
}
}
if (!function_exists('trim')) {
$aErrors[] = $errorString1 . 'trim' . $errorString2;
$isSystemOK = false;
if ($return === true) {
$return = -3;
}
}
// Test the disabled functons list with required functions list
// defined above in $aRequiredFunctions
$aDisabledFunctions = explode(',', ini_get('disable_functions'));
foreach ($aDisabledFunctions as $key => $value) {
$aDisabledFunctions[$key] = trim($value);
}
$aNeededFunctions = array_intersect($aDisabledFunctions, $aRequiredFunctions);
if (count($aNeededFunctions) > 0) {
$isSystemOK = false;
if ($return === true) {
$return = -3;
}
foreach ($aNeededFunctions as $functionName) {
$aErrors[] = $errorString1 . $functionName . $errorString2;
}
}
// Check PHP version, as use of the minimum required version of PHP > 5.5.9
// may result in parse errors, which we want to avoid
$errorMessage = "PHP version 5.5.9, or greater, was not detected.";
if (function_exists('version_compare')) {
$result = version_compare(phpversion(), '5.5.9', '<');
if ($result) {
$aErrors[] = $errorMessage;
$isSystemOK = false;
if ($return === true) {
$return = -3;
}
}
}
// Check minimum memory requirements are okay (24MB)
$minimumRequiredMemory = OX_getMinimumRequiredMemory();
$phpMemoryLimit = OX_getMemoryLimitSizeInBytes();
if ($phpMemoryLimit > 0 && $phpMemoryLimit < $minimumRequiredMemory) {
// The memory limit is too low, but can it be increased?
$memoryCanBeSet = OX_checkMemoryCanBeSet();
if (!$memoryCanBeSet) {
$minimumRequiredMemoryInMB = $minimumRequiredMemory / 1048576;
$errorMessage = 'The PHP "memory_limit" value is set to less than the required minimum of ' . $minimumRequiredMemoryInMB . 'MB, but because the built in PHP function "ini_set" ' . 'has been disabled, the memory limit cannot be automatically increased.';
$aErrors[] = $errorMessage;
$isSystemOK = false;
if ($return === true) {
$return = -4;
}
}
}
if (!$isSystemOK) {
return $return;
}
return true;
}
