sqlite_array_query

SQLiteDatabase::arrayQuery

(PHP 5 < 5.4.0, PECL sqlite >= 1.0.0)

sqlite_array_query -- SQLiteDatabase::arrayQuery — Execute a query against a given database and returns an array

说明

sqlite_array_query ( resource $dbhandle , string $query [, int $result_type = SQLITE_BOTH [, bool $decode_binary = TRUE ]] ) : array
sqlite_array_query ( string $query , resource $dbhandle [, int $result_type = SQLITE_BOTH [, bool $decode_binary = TRUE ]] ) : array

面向对象风格 (method):

public SQLiteDatabase::arrayQuery ( string $query [, int $result_type = SQLITE_BOTH [, bool $decode_binary = TRUE ]] ) : array

sqlite_array_query() executes the given query and returns an array of the entire result set. It is similar to calling sqlite_query() and then sqlite_fetch_array() for each row in the result set. sqlite_array_query() is significantly faster than the aforementioned.

Tip

sqlite_array_query() is best suited to queries returning 45 rows or less. If you have more data than that, it is recommended that you write your scripts to use sqlite_unbuffered_query() instead for more optimal performance.

参数

query

The query to be executed.

Data inside the query should be properly escaped.

dbhandle

The SQLite Database resource; returned from sqlite_open() when used procedurally. This parameter is not required when using the object-oriented method.

result_type

可选的 result_type 参数接受常量，且决定返回的数组如何被索引。使用 SQLITE_ASSOC 会仅返回关联索引（已命名字段），而 SQLITE_NUM 会仅返回数值索引。SQLITE_BOTH 会同时返回关联和数值索引。SQLITE_BOTH 是此函数的默认值。

decode_binary

当 decode_binary 参数设置为 TRUE（默认值）时，PHP 会解码那些由 sqlite_escape_string() 编码后的二进制数据。通常应保留此值为其默认值，除非要与其他使用 SQLlite 的应用程序建立的数据交互。

Note: 为兼容其他数据库扩展(比如 MySQL)，支持两种可替代的语法。推荐第一种格式，函数的第一个参数是dbhandle。

返回值

Returns an array of the entire result set; FALSE otherwise.

由 SQLITE_ASSOC 与 SQLITE_BOTH 返回的列名会依照 sqlite.assoc_case 配置选项的值决定大小写。

范例

Example #1 过程化风格

<?php
$dbhandle = sqlite_open('sqlitedb');
$result = sqlite_array_query($dbhandle, 'SELECT name, email FROM users LIMIT 25', SQLITE_ASSOC);
foreach ($result as $entry) {
    echo 'Name: ' . $entry['name'] . '  E-mail: ' . $entry['email'];
}
?>

Example #2 Object-oriented style

<?php
$dbhandle = new SQLiteDatabase('sqlitedb');
$result = $dbhandle->arrayQuery('SELECT name, email FROM users LIMIT 25', SQLITE_ASSOC);
foreach ($result as $entry) {
    echo 'Name: ' . $entry['name'] . '  E-mail: ' . $entry['email'];
}
?>

参见

相关文章
php date/time 函数 returns associative array with detailed info about given datephp gnupg 函数 returns an array with information about all keys that matches the given patternphp firebird/interbase 函数 execute a query on an interbase databasephp imap 函数 this function returns an array of messages matching the given search criteriaphp maxdb 函数 returns the number of warnings from the last query for the given linkphp mssql 函数 returns the number of records affected by the queryphp oci8 函数 returns the next row from a query as an associative or numeric arrayphp oci8 函数 returns the next row from a query as an associative arrayphp oci8 函数 returns the next row from a query as a numeric arrayphp sqlite 函数 execute a query against a given database and returns an arrayphp sqlite 函数 returns the number of rows that were changed by the most recent sql statementphp sqlite 函数 executes a result less query against a given databasephp sqlite 函数 opens an sqlite database and returns an sqlitedatabase objectphp sqlite 函数 returns the name of a particular fieldphp sqlite 函数 returns the error code of the last error for a databasephp sqlite 函数 executes a query against a given database and returns a result handlephp sqlite 函数 executes a query and returns either an array for one single column or the value of the first rowphp sqlite 函数 execute a query that does not prefetch and buffer all dataphp sdo das relational 函数 executes a given sql query against a relational database and returns the results as a normalised data graphphp sqlite3 executes a result less query against a given database
关注编程学问公众号