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Patch Is_a_with_allow_string_argument_v3 for Scripting Engine problem Bug #55475Patch version 2011-09-22 23:31 UTC Return to Bug #55475 | Download this patchThis patch is obsolete Obsoleted by patches: Patch Revisions:Developer: alan_k@php.netIndex: Zend/zend_builtin_functions.c =================================================================== --- Zend/zend_builtin_functions.c (revision 317068) +++ Zend/zend_builtin_functions.c (working copy) @@ -839,13 +839,19 @@ int class_name_len; zend_class_entry *instance_ce; zend_class_entry **ce; + zend_bool allow_string = only_subclass; zend_bool retval; - if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "zs", &obj, &class_name, &class_name_len) == FAILURE) { + if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "zs|b", &obj, &class_name, &class_name_len, &allow_string) == FAILURE) { return; } - - if (Z_TYPE_P(obj) == IS_STRING) { + /* + allow_string - is_a default is no, is_subclass_of is yes. + if it's allowed, then the autoloader will be called if the class does not exist. + default behaviour is different, as 'is_a' usage is normally to test mixed return values + */ + + if (allow_string && Z_TYPE_P(obj) == IS_STRING) { zend_class_entry **the_ce; if (zend_lookup_class(Z_STRVAL_P(obj), Z_STRLEN_P(obj), &the_ce TSRMLS_CC) == FAILURE) { RETURN_FALSE; @@ -871,7 +877,7 @@ } -/* {{{ proto bool is_subclass_of(object object, string class_name) +/* {{{ proto bool is_subclass_of(mixed object_or_string, string class_name [, bool allow_string=true]) Returns true if the object has this class as one of its parents */ ZEND_FUNCTION(is_subclass_of) { @@ -880,8 +886,8 @@ /* }}} */ -/* {{{ proto bool is_a(object object, string class_name) - Returns true if the object is of this class or has this class as one of its parents */ +/* {{{ proto bool is_a(mixed object_or_string, string class_name [, bool allow_string=false]) + Returns true if the first argument is an object and is this class or has this class as one of its parents, */ ZEND_FUNCTION(is_a) { is_a_impl(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0); |
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