Aerospike::increment - increments a numeric value in a bin
public int Aerospike::increment ( array $key, string $bin, int $offset [, int $initial_value = 0 [, array $options ]] )
Aerospike::increment() will increment a bin containing a numeric value by the offest or set it to the initial_value if it does not exist.
key the key under which the bin can be found. An associative array with keys 'ns','set','key'.
bin the name of the bin in which we have a numeric value.
offset the integer by which to increment the value in the bin.
initial_value the integer to set in the bin if it is empty
options including Aerospike::OPT_WRITE_TIMEOUT, Aerospike::OPT_POLICY_RETRY.
Returns an integer status code. Compare to the Aerospike class status constants. When non-zero the Aerospike::error() and Aerospike::errorno() methods can be used.
<?php
$config = array("hosts"=>array(array("addr"=>"localhost", "port"=>3000)));
$db = new Aerospike($config);
if (!$db->isConnected()) {
echo "Aerospike failed to connect[{$db->errorno()}]: {$db->error()}\n";
exit(1);
}
$key = $db->initKey("test", "users", 1234);
$res = $db->increment($key, 'pto', -4);
if ($res == Aerospike::OK) {
echo "Decremented four vacation days from the user's PTO balance.\n";
} else {
echo "[{$db->errorno()}] ".$db->error();
}
?>We expect to see:
Decremented four vacation days from the user's PTO balance.