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Cloneable Final Instantiable
Methods
public static caselessRemove ( array $keys , array $data ) : array
 

Remove the items given by the keys, case insensitively from the data.

  • param string [] $keys
public static copyToStream ( Psr\Http\Message\StreamInterface $source , Psr\Http\Message\StreamInterface $dest , int $maxLen = -1 ) : void
 

Copy the contents of a stream into another stream until the given number
of bytes have been read.

  • param StreamInterface $source Stream to read from
  • param StreamInterface $dest Stream to write to
  • param int $maxLen Maximum number of bytes to read. Pass -1 to read the entire stream.
  • throws RuntimeException on error.
public static copyToString ( Psr\Http\Message\StreamInterface $stream , int $maxLen = -1 ) : string
 

Copy the contents of a stream into a string until the given number of
bytes have been read.

  • param StreamInterface $stream Stream to read
  • param int $maxLen Maximum number of bytes to read. Pass -1 to read the entire stream.
  • throws RuntimeException on error.
public static hash ( Psr\Http\Message\StreamInterface $stream , string $algo , bool $rawOutput = false ) : string
 

Calculate a hash of a stream.

This method reads the entire stream to calculate a rolling hash, based
on PHP's hash_init functions.

  • param StreamInterface $stream Stream to calculate the hash for
  • param string $algo Hash algorithm (e.g. md5, crc32, etc)
  • param bool $rawOutput Whether or not to use raw output
  • throws RuntimeException on error.
public static modifyRequest ( Psr\Http\Message\RequestInterface $request , array $changes ) : Psr\Http\Message\RequestInterface
 

Clone and modify a request with the given changes.

This method is useful for reducing the number of clones needed to mutate
a message.

The changes can be one of:

  • method: (string) Changes the HTTP method.
  • set_headers: (array) Sets the given headers.
  • remove_headers: (array) Remove the given headers.
  • body: (mixed) Sets the given body.
  • uri: (UriInterface) Set the URI.
  • query: (string) Set the query string value of the URI.
  • version: (string) Set the protocol version.
  • param RequestInterface $request Request to clone and modify.
  • param array $changes Changes to apply.
public static readLine ( Psr\Http\Message\StreamInterface $stream , ? int $maxLength = NULL ) : string
 

Read a line from the stream up to the maximum allowed buffer length.

  • param StreamInterface $stream Stream to read from
  • param int | null $maxLength Maximum buffer length
public static streamFor ( $resource = '' , array $options = [ ] ) : Psr\Http\Message\StreamInterface
 

Create a new stream based on the input type.

Options is an associative array that can contain the following keys:

  • metadata: Array of custom metadata.
  • size: Size of the stream.

This method accepts the following $resource types:

  • Psr\Http\Message\StreamInterface: Returns the value as-is.
  • string: Creates a stream object that uses the given string as the contents.
  • resource: Creates a stream object that wraps the given PHP stream resource.
  • Iterator: If the provided value implements Iterator, then a read-only
    stream object will be created that wraps the given iterable. Each time the
    stream is read from, data from the iterator will fill a buffer and will be
    continuously called until the buffer is equal to the requested read size.
    Subsequent read calls will first read from the buffer and then call next
    on the underlying iterator until it is exhausted.
  • object with __toString(): If the object has the __toString() method,
    the object will be cast to a string and then a stream will be returned that
    uses the string value.
  • NULL: When null is passed, an empty stream object is returned.
  • callable When a callable is passed, a read-only stream object will be
    created that invokes the given callable. The callable is invoked with the
    number of suggested bytes to read. The callable can return any number of
    bytes, but MUST return false when there is no more data to return. The
    stream object that wraps the callable will invoke the callable until the
    number of requested bytes are available. Any additional bytes will be
    buffered and used in subsequent reads.
  • param resource | string | int | float | bool | StreamInterface | callable | Iterator | null $resource Entity body data
  • throws InvalidArgumentException if the $resource arg is not valid.
public static tryFopen ( string $filename , string $mode )
 

Safely opens a PHP stream resource using a filename.

When fopen fails, PHP normally raises a warning. This function adds an
error handler that checks for errors and throws an exception instead.

  • param string $filename File to open
  • param string $mode Mode used to open the file
  • return resource
  • throws RuntimeException if the file cannot be opened
public static uriFor ( $uri ) : Psr\Http\Message\UriInterface
 

Returns a UriInterface for the given value.

This function accepts a string or UriInterface and returns a
UriInterface for the given value. If the value is already a
UriInterface, it is returned as-is.

  • param string | UriInterface $uri
  • throws InvalidArgumentException
Methods
public static caselessRemove ( array $keys , array $data ) : array
 

Remove the items given by the keys, case insensitively from the data.

  • param string [] $keys
public static copyToStream ( Psr\Http\Message\StreamInterface $source , Psr\Http\Message\StreamInterface $dest , int $maxLen = -1 ) : void
 

Copy the contents of a stream into another stream until the given number
of bytes have been read.

  • param StreamInterface $source Stream to read from
  • param StreamInterface $dest Stream to write to
  • param int $maxLen Maximum number of bytes to read. Pass -1 to read the entire stream.
  • throws RuntimeException on error.
public static copyToString ( Psr\Http\Message\StreamInterface $stream , int $maxLen = -1 ) : string
 

Copy the contents of a stream into a string until the given number of
bytes have been read.

  • param StreamInterface $stream Stream to read
  • param int $maxLen Maximum number of bytes to read. Pass -1 to read the entire stream.
  • throws RuntimeException on error.
public static hash ( Psr\Http\Message\StreamInterface $stream , string $algo , bool $rawOutput = false ) : string
 

Calculate a hash of a stream.

This method reads the entire stream to calculate a rolling hash, based
on PHP's hash_init functions.

  • param StreamInterface $stream Stream to calculate the hash for
  • param string $algo Hash algorithm (e.g. md5, crc32, etc)
  • param bool $rawOutput Whether or not to use raw output
  • throws RuntimeException on error.
public static modifyRequest ( Psr\Http\Message\RequestInterface $request , array $changes ) : Psr\Http\Message\RequestInterface
 

Clone and modify a request with the given changes.

This method is useful for reducing the number of clones needed to mutate
a message.

The changes can be one of:

  • method: (string) Changes the HTTP method.
  • set_headers: (array) Sets the given headers.
  • remove_headers: (array) Remove the given headers.
  • body: (mixed) Sets the given body.
  • uri: (UriInterface) Set the URI.
  • query: (string) Set the query string value of the URI.
  • version: (string) Set the protocol version.
  • param RequestInterface $request Request to clone and modify.
  • param array $changes Changes to apply.
public static readLine ( Psr\Http\Message\StreamInterface $stream , ? int $maxLength = NULL ) : string
 

Read a line from the stream up to the maximum allowed buffer length.

  • param StreamInterface $stream Stream to read from
  • param int | null $maxLength Maximum buffer length
public static streamFor ( $resource = '' , array $options = [ ] ) : Psr\Http\Message\StreamInterface
 

Create a new stream based on the input type.

Options is an associative array that can contain the following keys:

  • metadata: Array of custom metadata.
  • size: Size of the stream.

This method accepts the following $resource types:

  • Psr\Http\Message\StreamInterface: Returns the value as-is.
  • string: Creates a stream object that uses the given string as the contents.
  • resource: Creates a stream object that wraps the given PHP stream resource.
  • Iterator: If the provided value implements Iterator, then a read-only
    stream object will be created that wraps the given iterable. Each time the
    stream is read from, data from the iterator will fill a buffer and will be
    continuously called until the buffer is equal to the requested read size.
    Subsequent read calls will first read from the buffer and then call next
    on the underlying iterator until it is exhausted.
  • object with __toString(): If the object has the __toString() method,
    the object will be cast to a string and then a stream will be returned that
    uses the string value.
  • NULL: When null is passed, an empty stream object is returned.
  • callable When a callable is passed, a read-only stream object will be
    created that invokes the given callable. The callable is invoked with the
    number of suggested bytes to read. The callable can return any number of
    bytes, but MUST return false when there is no more data to return. The
    stream object that wraps the callable will invoke the callable until the
    number of requested bytes are available. Any additional bytes will be
    buffered and used in subsequent reads.
  • param resource | string | int | float | bool | StreamInterface | callable | Iterator | null $resource Entity body data
  • throws InvalidArgumentException if the $resource arg is not valid.
public static tryFopen ( string $filename , string $mode )
 

Safely opens a PHP stream resource using a filename.

When fopen fails, PHP normally raises a warning. This function adds an
error handler that checks for errors and throws an exception instead.

  • param string $filename File to open
  • param string $mode Mode used to open the file
  • return resource
  • throws RuntimeException if the file cannot be opened
public static uriFor ( $uri ) : Psr\Http\Message\UriInterface
 

Returns a UriInterface for the given value.

This function accepts a string or UriInterface and returns a
UriInterface for the given value. If the value is already a
UriInterface, it is returned as-is.

  • param string | UriInterface $uri
  • throws InvalidArgumentException
© 2021 Bruce Wells
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