set_transient ( $transient, $value, $expiration = 0 )

  • (string) transient Transient name. Expected to not be SQL-escaped. Must be 172 characters or fewer in length.
  • (mixed) value Transient value. Must be serializable if non-scalar. Expected to not be SQL-escaped.
  • (int) expiration Optional. Time until expiration in seconds. Default 0 (no expiration).
  • (bool) True if the value was set, false otherwise.
Defined at:


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

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