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shm_put_var — Stores a value and its key in shared memory.


bool shm_put_var(shm_id, variable_key, value);
int shm_id: ID of a shared memory segment
int variable_key: Key number by which to store the variable
mixed value: Value to store


TRUE on success; FALSE on failure


shm_put_var() stores the value given by value with the key given by variable_key in the shared memory segment identified by shm_id . variable_key must be an integer or evaluate to an integer. If shm_id is not a valid identifier as returned by shm_attach() , or if there is not enough space left in the shared memory segment, FALSE is returned and the variable is not stored.


PHP 3 since 3.0.6, PHP 4


Example 1176. Store a value in shared memory

if (!@shm_put_var($shm_id, $varkey, $value)) {
    echo "Failed to store variable '$varkey'; reason: $php_errormsg\n";
} else {
    echo "Variable successfully stored.\n";

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 The authors of this book have elected not to choose any options under the OPL. This online book was obtained from 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.

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