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added array_combine().

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Creates an array by using the elements of the first parameter as keys and
the elements of the second as correspoding keys. Error is thrown in case
the arrays has different number of elements. Number of elements 0 is not
valid for both parameters.
This commit is contained in:
Andrey Hristov 2003-01-13 18:12:23 +00:00
parent ffeb57afb5
commit 1cdc956637
3 changed files with 44 additions and 0 deletions
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42
ext/standard/array.c
View File

@ -3651,6 +3651,48 @@ PHP_FUNCTION(array_chunk)
}
/* }}} */
/* {{{ proto array array_combine(array keys, array values)
Creates an array by using the elements of the first parameter as keys and the elements of the second as correspoding keys */
PHP_FUNCTION(array_combine)
{
zval *values, *keys;
HashPosition pos_values, pos_keys;
zval **entry_keys, **entry_values;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "aa", &keys, &values) == FAILURE) {
return;
}
if (zend_hash_num_elements(Z_ARRVAL_P(keys)) == 0 || zend_hash_num_elements(Z_ARRVAL_P(values)) == 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Both parameters should have number of elements at least 0");
RETURN_FALSE;
}
if (zend_hash_num_elements(Z_ARRVAL_P(keys)) != zend_hash_num_elements(Z_ARRVAL_P(values))) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Both parameters should have equal number of elements");
RETURN_FALSE;
}
array_init(return_value);
zend_hash_internal_pointer_reset_ex(Z_ARRVAL_P(keys), &pos_keys);
zend_hash_internal_pointer_reset_ex(Z_ARRVAL_P(values), &pos_values);
while (zend_hash_get_current_data_ex(Z_ARRVAL_P(keys), (void **)&entry_keys, &pos_keys) == SUCCESS &&
zend_hash_get_current_data_ex(Z_ARRVAL_P(values), (void **)&entry_values, &pos_values) == SUCCESS) {
if (Z_TYPE_PP(entry_keys) == IS_STRING) {
zval_add_ref(entry_values);
add_assoc_zval(return_value, Z_STRVAL_PP(entry_keys), *entry_values);
} else if (Z_TYPE_PP(entry_keys) == IS_LONG) {
zval_add_ref(entry_values);
add_index_zval(return_value, Z_LVAL_PP(entry_keys), *entry_values);
}
zend_hash_move_forward_ex(Z_ARRVAL_PP(entry_keys), &pos_keys);
zend_hash_move_forward_ex(Z_ARRVAL_PP(entry_values), &pos_values);
}
}
/* }}} */
/*
* Local variables:
* tab-width: 4

1
ext/standard/basic_functions.c
View File

@ -845,6 +845,7 @@ function_entry basic_functions[] = {
PHP_FE(array_filter, NULL)
PHP_FE(array_map, NULL)
PHP_FE(array_chunk, NULL)
PHP_FE(array_combine, NULL)
PHP_FE(array_key_exists, NULL)
/* aliases from array.c */

1
ext/standard/php_array.h
View File

@ -83,6 +83,7 @@ PHP_FUNCTION(array_filter);
PHP_FUNCTION(array_map);
PHP_FUNCTION(array_key_exists);
PHP_FUNCTION(array_chunk);
PHP_FUNCTION(array_combine);
HashTable* php_splice(HashTable *, int, int, zval ***, int, HashTable **);
PHPAPI int php_array_merge(HashTable *dest, HashTable *src, int recursive TSRMLS_DC);