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dbmdelete
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dbmdelete

Name

dbmdelete — Deletes a key.

Synopsis

int dbmdelete(identifier, key); int identifier: DBM identifier string key: DBM key

Returns

TRUE on success; FALSE if the specified key doesn't

Description

Deletes the specified key and value from the DBM file. Depending on the DBM implementation, a different return code may be used. For example, GDBM returns 0 on success, -1 if no key is found.

Version

Existing since version 3.0

Example

Example 234. Delete a key

if (!$dbm = dbmopen("testdb", "n")) {
    echo "Could not create DBM file!\n";
}

dbminsert($dbm, "a", "z");
dbmdelete($dbm, "a");

if (dbmexists($dbm, "a")) {
    echo "a is in the DBM file\n";
} else {
    echo "a is not in the DBM file\n";
}

dbmclose($dbm);

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PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at http://www.opencontent.org/openpub/). The authors of this book have elected not to choose any options under the OPL. This online book was obtained from http://www.fooassociates.com/phpfer/ and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.