Merge branch 'PHP-7.4'

* PHP-7.4:
  Avoid double copying

diff --cc Zend/zend_builtin_functions.c
Simple merge

diff --cc Zend/zend_hash.h
Simple merge

diff --cc Zend/zend_vm_def.h
Simple merge

diff --cc Zend/zend_vm_execute.h
Simple merge

diff --cc ext/standard/array.c
Simple merge