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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 |
---|---|
7528 | * their own contexts for raising the memory limit. |
7529 | * |
7530 | * @since 4.6.0 |
7531 | * |
7532 | * @param int|string $filtered_limit Maximum memory limit to allocate for images. |
7533 | * Default '256M' or the original php.ini `memory_limit`, |
7534 | * whichever is higher. Accepts an integer (bytes), or a |
7535 | * shorthand string notation, such as '256M'. |
7536 | */ |
7537 | $filtered_limit = apply_filters( "{$context}_memory_limit", $filtered_limit ); |
7538 | break; |
7539 | } |
7540 |
|
7541 | $filtered_limit_int = wp_convert_hr_to_bytes( $filtered_limit ); |
7542 |
|
7543 | if ( -1 === $filtered_limit_int || ( $filtered_limit_int > $wp_max_limit_int && $filtered_limit_int > $current_limit_int ) ) { |
7544 | if ( false !== ini_set( 'memory_limit', $filtered_limit ) ) { |
7545 | return $filtered_limit; |
7546 | } else { |