PHP 7.1

Changed functions

PHP Core

  • getopt() has an optional third parameter that exposes the index of the next element in the argument vector list to be processed. This is done via a by-ref parameter.
  • getenv() no longer requires its parameter. If the parameter is omitted, then the current environment variables will be returned as an associative array.
  • get_headers() now has an additional parameter to enable for the passing of custom stream contexts.
  • output_reset_rewrite_vars() no longer resets session URL rewrite variables.
  • parse_url() is now more restrictive and supports RFC3986.
  • unpack() now accepts an optional third parameter to specify the offset to begin unpacking from.

File System

  • file_get_contents() now accepts a negative seek offset if the stream is seekable.
  • tempnam() now emits a notice when falling back to the system's temp directory.


  • json_encode() now accepts a new option, JSON_UNESCAPED_LINE_TERMINATORS, to disable the escaping of U+2028 and U+2029 characters when JSON_UNESCAPED_UNICODE is supplied.

Multibyte String


  • PDO::lastInsertId() for PostgreSQL will now trigger an error when nextval has not been called for the current session (the postgres connection).


  • pg_last_notice() now accepts an optional parameter to specify an operation. This can be done with one of the following new constants: PGSQL_NOTICE_LAST, PGSQL_NOTICE_ALL, or PGSQL_NOTICE_CLEAR.
  • pg_fetch_all() now accepts an optional second parameter to specify the result type (similar to the third parameter of pg_fetch_array()).
  • pg_select() now accepts an optional fourth parameter to specify the result type (similar to the third parameter of pg_fetch_array()).


PHP 7.0

Changed functions

PHP Core

PHP 5.6

Changed functions

PHP Core

  • crypt() will now raise an E_NOTICE error if the salt parameter is omitted.
  • substr_compare() will now accept 0 for its length parameter.
  • unserialize() will now fail if passed serialised data that has been manipulated to attempt to instantiate an object without calling its constructor.


  • Uploads using the @file syntax are now only supported if the CURLOPT_SAFE_UPLOAD option is set to false. CURLFile should be used instead.


  • The source parameter of mcrypt_create_iv() now defaults to MCRYPT_DEV_URANDOM instead of MCRYPT_DEV_RANDOM.


  • stream_socket_enable_crypto() now allows the crypto_type parameter to be optional if the stream's SSL context includes the new crypto_type option.




PHP 5.5

Changed Functions

PHP Core