Supported Versions: PHP 4, PHP 5, PHP 7, PHP 8
Checks whether a file or directory exists
<?php file_exists(string $filename): bool<?php function includeIfExists($file)
{
return file_exists($file) ? include $file : null;
}
if ((!$loader = includeIfExists(__DIR__.'/../vendor/autoload.php')) && (!$loader = includeIfExists(__DIR__.'/../../../autoload.php'))) {<?php $includePathFilePath = $targetDir.'/include_paths.php';
if ($includePathFileContents = $this->getIncludePathsFile($packageMap, $filesystem, $basePath, $vendorPath, $vendorPathCode, $appBaseDirCode)) {
$filesystem->filePutContentsIfModified($includePathFilePath, $includePathFileContents);
} elseif (file_exists($includePathFilePath)) {
unlink($includePathFilePath);
}
$includeFilesFilePath = $targetDir.'/autoload_files.php';<?php $includeFilesFilePath = $targetDir.'/autoload_files.php';
if ($includeFilesFileContents = $this->getIncludeFilesFile($autoloads['files'], $filesystem, $basePath, $vendorPath, $vendorPathCode, $appBaseDirCode)) {
$filesystem->filePutContentsIfModified($includeFilesFilePath, $includeFilesFileContents);
} elseif (file_exists($includeFilesFilePath)) {
unlink($includeFilesFilePath);
}
$filesystem->filePutContentsIfModified($targetDir.'/autoload_static.php', $this->getStaticFile($suffix, $targetDir, $vendorPath, $basePath));<?php }
if ($checkPlatform) {
$filesystem->filePutContentsIfModified($targetDir.'/platform_check.php', $platformCheckContent);
} elseif (file_exists($targetDir.'/platform_check.php')) {
unlink($targetDir.'/platform_check.php');
}
$filesystem->filePutContentsIfModified($vendorPath.'/autoload.php', $this->getAutoloadFile($vendorPathToTargetDirCode, $suffix));<?php if (file_exists($dir)) {
$dirMatch = preg_quote(strtr(realpath($dir), '\\', '/'));
foreach ($excluded as $index => $pattern) {<?php $initializer = '';
$prefix = "\0Composer\Autoload\ClassLoader\0";
$prefixLen = strlen($prefix);
if (file_exists($targetDir . '/autoload_files.php')) {
$maps = array('files' => require $targetDir . '/autoload_files.php');
} else {
$maps = array();<?php if (isset($this->prefixDirsPsr4[$search])) {
$pathEnd = DIRECTORY_SEPARATOR . substr($logicalPathPsr4, $lastPos + 1);
foreach ($this->prefixDirsPsr4[$search] as $dir) {
if (file_exists($file = $dir . $pathEnd)) {
return $file;
}
}<?php foreach ($this->fallbackDirsPsr4 as $dir) {
if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr4)) {
return $file;
}
}<?php foreach ($this->prefixesPsr0[$first] as $prefix => $dirs) {
if (0 === strpos($class, $prefix)) {
foreach ($dirs as $dir) {
if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
return $file;
}
}<?php foreach ($this->fallbackDirsPsr0 as $dir) {
if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
return $file;
}
}<?php $contents = @php_strip_whitespace($path);
if (!$contents) {
if (!file_exists($path)) {
$message = 'File at "%s" does not exist, check your classmap definitions';
} elseif (!Filesystem::isReadable($path)) {
$message = 'File at "%s" is not readable, check its permissions';<?php {
if ($this->isEnabled()) {
$file = Preg::replace('{[^'.$this->allowlist.']}i', '-', $file);
if (file_exists($this->root . $file)) {
$this->io->writeError('Reading '.$this->root . $file.' from cache', true, IOInterface::DEBUG);
return file_get_contents($this->root . $file);<?php $file = Preg::replace('{[^'.$this->allowlist.']}i', '-', $file);
$this->filesystem->ensureDirectoryExists(dirname($this->root . $file));
if (!file_exists($source)) {
$this->io->writeError('<error>'.$source.' does not exist, can not write into cache</error>');
} elseif ($this->io->isDebug()) {
$this->io->writeError('Writing '.$this->root . $file.' into cache from '.$source);<?php {
if ($this->isEnabled()) {
$file = Preg::replace('{[^'.$this->allowlist.']}i', '-', $file);
if (file_exists($this->root . $file)) {
try {
touch($this->root . $file, (int) filemtime($this->root . $file), time());
} catch (\ErrorException $e) {<?php {
if ($this->isEnabled()) {
$file = Preg::replace('{[^'.$this->allowlist.']}i', '-', $file);
if (file_exists($this->root . $file)) {
return $this->filesystem->unlink($this->root . $file);
}
}