zend/fastcall.cpp


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/**
 *  fastcall.cpp
 *
 *  This file holds some PHP functions implementation in C directly.
 *
 */

#include "includes.h"

namespace Php {

    bool class_exists(const std::string &classname, bool autoload) {
        // we need the tsrm_ls variable
        TSRMLS_FETCH();

        zend_class_entry **ce;
        int found;
        const char * str = classname.c_str();
        int32_t len = (int32_t)classname.length();


        if (autoload) {
            char lc_name[len + 1];
            zend_str_tolower_copy(lc_name, str, len);

            char *name = lc_name;
            if (lc_name[0] == '\\') {
                name = &lc_name[1];
                --len;
            }

            found = zend_hash_find(EG(class_table), name, len + 1, (void **) &ce);
            return (found == SUCCESS && !(((*ce)->ce_flags & (ZEND_ACC_INTERFACE | ZEND_ACC_TRAIT)) > ZEND_ACC_EXPLICIT_ABSTRACT_CLASS));
        }

        if (zend_lookup_class(str, len, &ce TSRMLS_CC) == SUCCESS) {
            return (((*ce)->ce_flags & (ZEND_ACC_INTERFACE | (ZEND_ACC_TRAIT - ZEND_ACC_EXPLICIT_ABSTRACT_CLASS))) == 0);
        }
        return false;
    }

}