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set_transient › WordPress Function
Since2.8.0
Deprecatedn/a
› set_transient ( $transient, $value, $expiration = 0 )
Parameters: (3) |
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Returns: |
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Defined at: |
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Codex: |
Sets/updates the value of a transient.
You do not need to serialize values. If the value needs to be serialized, then it will be serialized before it is set.Related Functions: get_transient, set_site_transient, delete_transient, get_site_transient, delete_site_transient
Source
function set_transient( $transient, $value, $expiration = 0 ) {
$expiration = (int) $expiration;
/**
* Filters a specific transient before its value is set.
*
* The dynamic portion of the hook name, `$transient`, refers to the transient name.
*
* @since 3.0.0
* @since 4.2.0 The `$expiration` parameter was added.
* @since 4.4.0 The `$transient` parameter was added.
*
* @param mixed $value New value of transient.
* @param int $expiration Time until expiration in seconds.
* @param string $transient Transient name.
*/
$value = apply_filters( "pre_set_transient_{$transient}", $value, $expiration, $transient );
/**
* Filters the expiration for a transient before its value is set.
*
* The dynamic portion of the hook name, `$transient`, refers to the transient name.
*
* @since 4.4.0
*
* @param int $expiration Time until expiration in seconds. Use 0 for no expiration.
* @param mixed $value New value of transient.
* @param string $transient Transient name.
*/
$expiration = apply_filters( "expiration_of_transient_{$transient}", $expiration, $value, $transient );
if ( wp_using_ext_object_cache() || wp_installing() ) {
$result = wp_cache_set( $transient, $value, 'transient', $expiration );
} else {
$transient_timeout = '_transient_timeout_' . $transient;
$transient_option = '_transient_' . $transient;
wp_prime_option_caches( array( $transient_option, $transient_timeout ) );
if ( false === get_option( $transient_option ) ) {
$autoload = true;
if ( $expiration ) {
$autoload = false;
add_option( $transient_timeout, time() + $expiration, '', false );
}
$result = add_option( $transient_option, $value, '', $autoload );
} else {
/*
* If expiration is requested, but the transient has no timeout option,
* delete, then re-create transient rather than update.
*/
$update = true;
if ( $expiration ) {
if ( false === get_option( $transient_timeout ) ) {
delete_option( $transient_option );
add_option( $transient_timeout, time() + $expiration, '', false );
$result = add_option( $transient_option, $value, '', false );
$update = false;
} else {
update_option( $transient_timeout, time() + $expiration );
}
}
if ( $update ) {
$result = update_option( $transient_option, $value );
}
}
}
if ( $result ) {
/**
* Fires after the value for a specific transient has been set.
*
* The dynamic portion of the hook name, `$transient`, refers to the transient name.
*
* @since 3.0.0
* @since 3.6.0 The `$value` and `$expiration` parameters were added.
* @since 4.4.0 The `$transient` parameter was added.
*
* @param mixed $value Transient value.
* @param int $expiration Time until expiration in seconds.
* @param string $transient The name of the transient.
*/
do_action( "set_transient_{$transient}", $value, $expiration, $transient );
/**
* Fires after the value for a transient has been set.
*
* @since 3.0.0
* @since 3.6.0 The `$value` and `$expiration` parameters were added.
*
* @param string $transient The name of the transient.
* @param mixed $value Transient value.
* @param int $expiration Time until expiration in seconds.
*/
do_action( 'setted_transient', $transient, $value, $expiration );
}
return $result;
}