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wp_secrets_max_name_length › WordPress Constants

Since7.2.0

› define( 'WP_SECRETS_MAX_NAME_LENGTH', 172 );

Defined at:

wp-includes/secrets.php, line 129

The longest a secret name may be.

The wp_options.option_name column allows 191 characters. The longest prefix this API stores under is '_wp_network_secret_' (19 characters), so 191 - 19 = 172 is the longest name any store built on core's options tables can accept without truncation, and every store is held to the same limit for consistency regardless of what a specific backend could technically fit.

Source

define( 'WP_SECRETS_MAX_NAME_LENGTH', 172 );