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52-Using the hash table APIZend The Hashtable-related APIs into several categories for us to find, and most of the return values for these APIs are constant success or failure.Create HashtableThe following describes the function prototypes using the

1. Create hashtable Int zend_hash_init (hashtable * HT, // point to a hashtableuint nsize, // nsize indicates the maximum number of elements that the hashtable can possess. When we add new elements, this value determines whether to automatically

1.dictionary is suitable for a unique object, stored in the form of a key-value pair, and the type of the key-value pair is generic;2.dictionary is similar to the HashMap in Java. (I was originally a Java-learning)3.dictionary usage: dictionarydic =

Next, let's talk about the APIs of arrays and hash tables in the php extension. this section mainly describes the sorting, comparison, and pole & amp; 20540 of callback traversal functions; the IterationbyhashApply function is used to traverse the

Then the above section, continue to say the PHP extension of the array with the hash table API, this section is mainly said callback traversal function normal traversal function destructor sorting, contrast, extremum function iteration by hash

Next, let's talk about the APIs of arrays and hash tables in the php extension. This section mainly refers to the sorting, comparison, and extreme value functions of the callback traversal function in normal traversal function destructor.Iteration

This article mainly introduces the PHPPDO Operation summary. This article describes how to use PDO to connect to the database, perform basic queries, obtain the number of rows, traverse the result set, escape the special characters entered by the

0X01: Test PDO for installation successRun the following code, if prompted with a parameter error, the PDO has been installed, if the description object does not exist, modify the PHP configuration file php.ini, Php_pdo_yourssqlserverhere.extis the

This article is mainly to share with you thinkphp and PHP some small query tips, hope to help everyone. 1: Association query with the same field name query all fields $goodsNum = $cartlistM->field (' *,a.id as CID ')->join (' Goods as B on

0X01: Test PDO whether the installation was successful Run the following code, if you are prompted for a parameter error, PDO has been installed, if the description object does not exist, modify the PHP configuration file php.ini, cancel