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Description

Sets/updates the value of a site transient.

You do not need to serialize values. If the value needs to be serialized, then it will be serialized before it is set.

Usage

$bool = set_site_transient( $transient, $value, $expiration );

Parameters

$transient

( string ) required – Transient name. Expected to not be SQL-escaped. Must be

1. characters or fewer in length.

$value

( mixed ) required – Transient value. Expected to not be SQL-escaped.

$expiration

( int ) optional – Optional. Time until expiration in seconds. Default 0 (no expiration).

Returns

bool True if the value was set, false otherwise.

Source

File name: wordpress/wp-includes/option.php
Lines:

function set_site_transient( $transient, $value, $expiration = 0 ) {

  
/**
 * Filters the value of a specific site transient before it is set.
 *
 * The dynamic portion of the hook name, `$transient`, refers to the transient name.
 *
 * @since 3.0.0
 * @since 4.4.0 The `$transient` parameter was added.
 *
 * @param mixed  $value     New value of site transient.
 * @param string $transient Transient name.
 */
  $value = apply_filters( "pre_set_site_transient_{$transient}", $value, $transient );

  $expiration = (int) $expiration;

  
/**
 * Filters the expiration for a site 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 site transient.
 * @param string $transient  Transient name.
 */
  $expiration = apply_filters( "expiration_of_site_transient_{$transient}", $expiration, $value, $transient );

  if ( wp_using_ext_object_cache() || wp_installing() ) {
    $result = wp_cache_set( $transient, $value, 'site-transient', $expiration );
  } else {
    $transient_timeout = '_site_transient_timeout_' . $transient;
    $option            = '_site_transient_' . $transient;

    if ( false === get_site_option( $option ) ) {
      if ( $expiration ) {
        add_site_option( $transient_timeout, time() + $expiration );
      }
      $result = add_site_option( $option, $value );
    } else {
      if ( $expiration ) {
        update_site_option( $transient_timeout, time() + $expiration );
      }
      $result = update_site_option( $option, $value );
    }
  }

  if ( $result ) {

    
/**
 * Fires after the value for a specific site transient has been set.
 *
 * The dynamic portion of the hook name, `$transient`, refers to the transient name.
 *
 * @since 3.0.0
 * @since 4.4.0 The `$transient` parameter was added
 *
 * @param mixed  $value      Site transient value.
 * @param int    $expiration Time until expiration in seconds.
 * @param string $transient  Transient name.
 */
    do_action( "set_site_transient_{$transient}", $value, $expiration, $transient );

    
/**
 * Fires after the value for a site transient has been set.
 *
 * @since 3.0.0
 *
 * @param string $transient  The name of the site transient.
 * @param mixed  $value      Site transient value.
 * @param int    $expiration Time until expiration in seconds.
 */
    do_action( 'setted_site_transient', $transient, $value, $expiration );
  }

  return $result;
}
 

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