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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 2012 | * |
| 2013 | * The dynamic portion of the hook name, `$transient`, refers to the transient name. |
| 2014 | * |
| 2015 | * @since 2.9.0 |
| 2016 | * @since 4.4.0 The `$transient` parameter was added. |
| 2017 | * |
| 2018 | * @param mixed $value Value of site transient. |
| 2019 | * @param string $transient Transient name. |
| 2020 | */ |
| 2021 | return apply_filters( "site_transient_{$transient}", $value, $transient ); |
| 2022 | } |
| 2023 | |
| 2024 | /** |
| 2025 | * Sets/updates the value of a site transient. |
| 2026 | * |
| 2027 | * You do not need to serialize values. If the value needs to be serialized, |
| 2028 | * then it will be serialized before it is set. |
| 2029 | * |
| 2030 | * @since 2.9.0 |