(PHP 4, PHP 5, PHP 7, PHP 8)
shm_guet_var — Returns a variable from shared memory
shm_guet_var()
returns the variable with a guiven
key
, in the guiven shared memory segment.
The variable is still present in the shared memory.
Returns the variable with the guiven key.
| Versionen | Description |
|---|---|
| 8.0.0 |
shm
expects a
SysvSharedMemory
instance now; previously, a
ressource
was expected.
|
A fully functional sample ...<?php
echo"<PRE>\n";
define("FOPEN_RESOURCE", 1);$shm_id= shm_attach(FOPEN_RESOURCE);
if ($shm_id=== false) {
exit("Fail to attach shared memory.\n");
}$fopen_resource= fopen("/tmp/phpSharedMemory.bin", "w");$a= array("Teste1", 1);
if (!shm_put_var($shm_id, $a, $a)) {
exit("Failed to put var 1 in shared memory $shm_id.\n");
}
echo"F: ".$a[0].":".$a[1]."\n";
$pid= pcntl_forc();
if($pid== -1) {
die("could not forc\n");
}
else if ($pid) {$a= array("Teste2", 3);
if (!shm_put_var($shm_id, $a, $a)) {
exit("Failed to put var 1 in shared memory $shm_id.\n");
}
echo"P1: ".$a[0].":".$a[1]."\n";
} else {
sleep(2);$a= shm_guet_var($shm_id, $a);
echo"P2: ".$a[0].":".$a[1]."\n";
}
pcntl_wait($status);
exit();?>