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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 |
---|---|
5401 | * (256 megabytes of memory) or the original `memory_limit` php.ini value if |
5402 | * this is higher. |
5403 | * |
5404 | * @since 3.0.0 |
5405 | * @since 4.6.0 The default now takes the original `memory_limit` into account. |
5406 | * |
5407 | * @param int|string $filtered_limit The maximum WordPress memory limit. Accepts an integer |
5408 | * (bytes), or a shorthand string notation, such as '256M'. |
5409 | */ |
5410 | $filtered_limit = apply_filters( 'admin_memory_limit', $filtered_limit ); |
5411 | break; |
5412 |
|
5413 | case 'image': |
5414 | /** |
5415 | * Filters the memory limit allocated for image manipulation. |
5416 | * |
5417 | * @since 3.5.0 |
5418 | * @since 4.6.0 The default now takes the original `memory_limit` into account. |
5419 | * |