Supported Versions: PHP 4, PHP 5, PHP 7, PHP 8
Find out whether an extension is loaded
<?php extension_loaded(string $extension): bool<?php }
$io->write(
'zip: ' . (extension_loaded('zip') ? '<comment>extension present</comment>' : '<comment>extension not loaded</comment>')
. ', ' . ($hasSystemUnzip ? '<comment>unzip present</comment>' : '<comment>unzip not available</comment>')
. ', ' . ($hasSystem7zip ? '<comment>7-Zip present ('.$bin7zip.')</comment>' : '<comment>7-Zip not available</comment>')
. (($hasSystem7zip || $hasSystemUnzip) && !function_exists('proc_open') ? ', <warning>proc_open is disabled or not present, unzip/7-z will not be usable</warning>' : '')<?php return $result;
}
$protocol = extension_loaded('openssl') ? 'https' : 'http';
try {
$json = $this->httpDownloader->get($protocol . '://repo.packagist.org/packages.json')->decodeJson();
$hash = reset($json['provider-includes']);<?php private function getCurlVersion()
{
if (extension_loaded('curl')) {
if (!HttpDownloader::isCurlEnabled()) {
return '<error>disabled via disable_functions, using php streams fallback, which reduces performance</error>';
}<?php $errors['json'] = true;
}
if (!extension_loaded('Phar')) {
$errors['phar'] = true;
}<?php $errors['phar'] = true;
}
if (!extension_loaded('filter')) {
$errors['filter'] = true;
}<?php $errors['filter'] = true;
}
if (!extension_loaded('hash')) {
$errors['hash'] = true;
}<?php $errors['hash'] = true;
}
if (!extension_loaded('iconv') && !extension_loaded('mbstring')) {
$errors['iconv_mbstring'] = true;
}<?php $errors['allow_url_fopen'] = true;
}
if (extension_loaded('ionCube Loader') && ioncube_loader_iversion() < 40009) {
$errors['ioncube'] = ioncube_loader_version();
}<?php $errors['php'] = PHP_VERSION;
}
if (!extension_loaded('openssl')) {
$errors['openssl'] = true;
}<?php $errors['openssl'] = true;
}
if (extension_loaded('openssl') && OPENSSL_VERSION_NUMBER < 0x1000100f) {
$warnings['openssl_version'] = true;
}<?php $warnings['openssl_version'] = true;
}
if (!defined('HHVM_VERSION') && !extension_loaded('apcu') && filter_var(ini_get('apc.enable_cli'), FILTER_VALIDATE_BOOLEAN)) {
$warnings['apc_cli'] = true;
}<?php $warnings['apc_cli'] = true;
}
if (!extension_loaded('zlib')) {
$warnings['zlib'] = true;
}<?php }
if (!extension_loaded('openssl') && $config->get('disable-tls')) {
$io->writeError('<warning>Skipping phar signature verification as you have disabled OpenSSL via config.disable-tls</warning>');
} else {
if (!extension_loaded('openssl')) {<?php if (!extension_loaded('openssl') && $config->get('disable-tls')) {
$io->writeError('<warning>Skipping phar signature verification as you have disabled OpenSSL via config.disable-tls</warning>');
} else {
if (!extension_loaded('openssl')) {
throw new \RuntimeException('The openssl extension is required for phar signatures to be verified but it is not available. '
. 'If you can not enable the openssl extension, you can disable this error, at your own risk, by setting the \'disable-tls\' option to true.');
}<?php {
static $shutdownRegistered = false;
if (function_exists('ini_set') && extension_loaded('xdebug')) {
ini_set('xdebug.show_exception_trace', '0');
ini_set('xdebug.scream', '0');
}