string[] readAndWrite(bool $blocking, bool $close = false) Reads data in file handles and pipes. Parameters bool $blocking Whether to use blocking calls or not bool $close Whether to close pipes if they've reached EOF Return Value string[] An array of read data indexed by their fd

bool areOpen() Returns if the current state has open file handles or pipes. Return Value bool

class UniversalClassLoader deprecated since version 2.4, to be removed in 3.0. Use the {@link ClassLoader} class instead. UniversalClassLoader implements a "universal" autoloader for PHP 5.3. It is able to load classes that use either: The technical interoperability standards for PHP 5.3 namespaces and class names (https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-0.md); The PEAR naming convention for classes (http://pear.php.net/). Classes from a sub-namespace or a sub-h

string[] getFiles() Returns an array of filenames indexed by their related stream in case these pipes use temporary files. Return Value string[]

array getDescriptors() Returns an array of descriptors for the use of proc_open. Return Value array

class UnixPipes extends AbstractPipes UnixPipes implementation uses unix pipes as handles. Properties array $pipes from AbstractPipes Methods __construct($ttyMode, $ptyMode, $input, $haveReadSupport) close() Closes file handles and pipes. from AbstractPipes __destruct() array getDescriptors() Returns an array of descriptors for the use of proc_open. string[] getFiles() Returns an array of filenames indexed by their related stream in case these pipes use temporar

class UniqueEntityValidator extends ConstraintValidator Unique Entity Validator checks if one or a set of fields contain unique values. Constants PRETTY_DATE Whether to format {@link \DateTime} objects as RFC-3339 dates ("Y-m-d H:i:s"). OBJECT_TO_STRING Whether to cast objects with a "__toString()" method to strings. Methods initialize(ExecutionContextInterface $context) Initializes the constraint validator. from ConstraintValidator __construct(ManagerRegistry $registry)

string|array getTargets() Returns whether the constraint can be put onto classes, properties or both. This method should return one or more of the constants Constraint::CLASSCONSTRAINT and Constraint::PROPERTYCONSTRAINT. Return Value string|array One or more constant values

string validatedBy() The validator must be defined as a service with this name. Return Value string

array getRequiredOptions() Returns the name of the required options. Override this method if you want to define required options. Return Value array