File: wp-includes/load.php
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functionwp_get_mu_plugins()
Retrieves an array of must-use plugin files.
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functionwp_maintenance()
Dies with a maintenance message when conditions are met.
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Retrieves an array of active and valid plugin files.
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functiontimer_start()
Starts the WordPress micro-timer.
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functiontimer_stop()
Retrieves or displays the time from the page start to when function is called.
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functionwp_debug_mode()
Sets PHP error reporting based on WordPress debug settings.
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functionis_ssl()
Determines if SSL is used.
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functionabsint()
Converts a value to non-negative integer.
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functionwp_convert_hr_to_bytes()
Converts a shorthand byte value to an integer byte value.
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functionis_wp_error()
Checks whether the given variable is a WordPress Error.