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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 |
---|---|
3703 | /** |
3704 | * Filters the maximum upload size allowed in php.ini. |
3705 | * |
3706 | * @since 2.5.0 |
3707 | * |
3708 | * @param int $size Max upload size limit in bytes. |
3709 | * @param int $u_bytes Maximum upload filesize in bytes. |
3710 | * @param int $p_bytes Maximum size of POST data in bytes. |
3711 | */ |
3712 | return apply_filters( 'upload_size_limit', min( $u_bytes, $p_bytes ), $u_bytes, $p_bytes ); |
3713 | } |
3714 |
|
3715 | /** |
3716 | * Returns a WP_Image_Editor instance and loads file into it. |
3717 | * |
3718 | * @since 3.5.0 |
3719 | * |
3720 | * @param string $path Path to the file to load. |
3721 | * @param array $args Optional. Additional arguments for retrieving the image editor. |