New functions
<link linkend="class.closure">Closure</link>
Closure::call
<link linkend="book.csprng">CSPRNG</link>
random_bytes
random_int
<link linkend="book.errorfunc">Error Handling and Logging</link>
error_clear_last
<link linkend="class.generator">Generator</link>
Generator::getReturn
<link linkend="book.gmp">GNU Multiple Precision</link>
gmp_random_seed
<link linkend="book.math">Math</link>
intdiv
<link linkend="book.pcre">PCRE</link>
preg_replace_callback_array
<link linkend="book.info">PHP Options/Info</link>
gc_mem_caches
get_resources
<link linkend="book.posix">POSIX</link>
posix_setrlimit
<link linkend="book.reflection">Reflection</link>
ReflectionParameter::getType
ReflectionParameter::hasType
ReflectionFunctionAbstract::getReturnType
ReflectionFunctionAbstract::hasReturnType
<link linkend="book.zip">Zip</link>
ZipArchive::setCompressionIndex
ZipArchive::setCompressionName
<link linkend="book.zlib">Zlib Compression</link>
inflate_add
deflate_add
inflate_init
deflate_init