dba_fetch

(PHP 4, PHP 5, PHP 7, PHP 8)

dba_fetch — Fetch data specified by key

说明

dba_fetch(string $key, resource $handle): string

dba_fetch(string $key, int $skip, resource $handle): string

dba_fetch() fetches the data specified by key from the database specified with handle.

参数

key: The key the data is specified by.

注意:
When working with inifiles this function accepts arrays as keys where index 0 is the group and index 1 is the value name. See: dba_key_split().
skip: The number of key-value pairs to ignore when using cdb databases. This value is ignored for all other databases which do not support multiple keys with the same name.
handle: The database handler, returned by dba_open() or dba_popen().

返回值

Returns the associated string if the key/data pair is found, false otherwise.

参见

dba_exists() - Check whether key exists
dba_delete() - Delete DBA entry specified by key
dba_insert() - Insert entry
dba_replace() - Replace or insert entry
dba_key_split() - Splits a key in string representation into array representation

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User Contributed Notes 1 note

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khan666 at lycos dot co dot kr ¶

11 years ago


:: fetch array sort.


ex) TEST_DATA.DB


    1/korea/5000/word 1

    10/japan/25000/word 10

    21/china/130000/word 21

    2/usa/35000/word 2


<?php

# LIST SORT 

$DB4_DATABASE = "TEST_DATA.DB4";

$DIV = "/";

$_FILE = "$DATA_DIR/HUTM_NETWORK_ROUTER.DB"; // DB4 FileName


$db  = dba_open($DB4_DATABASE,"r","db4");

$key = dba_firstkey($db);

$ii = 0;

while($key != NULL)

{

     $LIST[$ii] = explode($DIV,dba_fetch($key, $db));    // fetch array

    $key = dba_nextkey($db);

    $ii++;

}

dba_close($db);

$total = $ii; // total count


# date sort

sort($LIST,SORT_NUMERIC);    // numeric key sort ..


# list display

for($i=0;$i<$total;$i++)

{

    $oData = explode($DIV,$LIST[$i]);    // key + value (sort)


    $key   = trim(chop($oData[0])); # 키번호 

    $name  = trim(chop($oData[1])); # 이름 

    $count = trim(chop($oData[2])); # 수

    $word  = trim(chop($oData[3])); # 설명


    echo "$key / $name / $count / $word <br>\r\n";

}

?>



::result::


1/korea/5000/word 1

2/usa/35000/word 2

10/japan/25000/word 10

21/china/130000/word 21

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官方地址：https://www.php.net/manual/en/function.dba-fetch.php

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PHP官方手册 - 互联网笔记

dba_fetch

说明

参数

返回值

参见

User Contributed Notes 1 note