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Edit File: ErrorHandler.php

<?php
/**
 * The error handler to suppress error messages from vendor directories.
 */

namespace WPForms;

/**
 * Class ErrorHandler.
 *
 * @since 1.8.5
 */
class ErrorHandler {

/**
	 * Directories from where errors should be suppressed.
	 *
	 * @since 1.8.5
	 *
	 * @var string[]
	 */
	private $dirs;

/**
	 * Previous error handler.
	 *
	 * @since 1.8.6
	 *
	 * @var callable|null
	 */
	private $previous_error_handler;

/**
	 * Error levels to suppress.
	 *
	 * @since 1.8.6
	 *
	 * @var int
	 */
	private $levels;

/**
	 * Init class.
	 *
	 * @since 1.8.5
	 *
	 * @noinspection PhpUndefinedConstantInspection
	 */
	public function init() {

if ( defined( 'WPFORMS_DISABLE_ERROR_HANDLER' ) && WPFORMS_DISABLE_ERROR_HANDLER ) {
			return;
		}

$this->dirs = [
			WPFORMS_PLUGIN_DIR . 'vendor/',
			WPFORMS_PLUGIN_DIR . 'vendor_prefixed/',
			WP_PLUGIN_DIR . '/wpforms-activecampaign/vendor/',
			WP_PLUGIN_DIR . '/wpforms-authorize-net/vendor/',
			WP_PLUGIN_DIR . '/wpforms-aweber/vendor/',
			WP_PLUGIN_DIR . '/wpforms-calculations/vendor/',
			WP_PLUGIN_DIR . '/wpforms-campaign-monitor/vendor/',
			WP_PLUGIN_DIR . '/wpforms-captcha/vendor/',
			WP_PLUGIN_DIR . '/wpforms-clear-cache/vendor/',
			WP_PLUGIN_DIR . '/wpforms-conversational-forms/vendor/',
			WP_PLUGIN_DIR . '/wpforms-coupons/vendor/',
			WP_PLUGIN_DIR . '/wpforms-drip/vendor/',
			WP_PLUGIN_DIR . '/wpforms-e2e-helpers/vendor/',
			WP_PLUGIN_DIR . '/wpforms-form-abandonment/vendor/',
			WP_PLUGIN_DIR . '/wpforms-form-locker/vendor/',
			WP_PLUGIN_DIR . '/wpforms-form-pages/vendor/',
			WP_PLUGIN_DIR . '/wpforms-geolocation/vendor/',
			WP_PLUGIN_DIR . '/wpforms-getresponse/vendor/',
			WP_PLUGIN_DIR . '/wpforms-google-sheets/vendor/',
			WP_PLUGIN_DIR . '/wpforms-hubspot/vendor/',
			WP_PLUGIN_DIR . '/wpforms-lead-forms/vendor/',
			WP_PLUGIN_DIR . '/wpforms-mailchimp/vendor/',
			WP_PLUGIN_DIR . '/wpforms-mailerlite/vendor/',
			WP_PLUGIN_DIR . '/wpforms-offline-forms/vendor/',
			WP_PLUGIN_DIR . '/wpforms-paypal-commerce/vendor/',
			WP_PLUGIN_DIR . '/wpforms-paypal-standard/vendor/',
			WP_PLUGIN_DIR . '/wpforms-post-submissions/vendor/',
			WP_PLUGIN_DIR . '/wpforms-salesforce/vendor/',
			WP_PLUGIN_DIR . '/wpforms-save-resume/vendor/',
			WP_PLUGIN_DIR . '/wpforms-sendinblue/vendor/',
			WP_PLUGIN_DIR . '/wpforms-signatures/vendor/',
			WP_PLUGIN_DIR . '/wpforms-square/vendor/',
			WP_PLUGIN_DIR . '/wpforms-stripe/vendor/',
			WP_PLUGIN_DIR . '/wpforms-surveys-polls/vendor/',
			WP_PLUGIN_DIR . '/wpforms-user-journey/vendor/',
			WP_PLUGIN_DIR . '/wpforms-user-registration/vendor/',
			WP_PLUGIN_DIR . '/wpforms-webhooks/vendor/',
			WP_PLUGIN_DIR . '/wpforms-zapier/vendor/',
		];

/**
		 * Allow modifying the list of dirs to suppress messages from.
		 *
		 * @since 1.8.6
		 *
		 * @param bool $dirs The list of dirs to suppress messages from.
		 */
		$this->dirs = (array) apply_filters( 'wpforms_error_handler_dirs', $this->dirs );

if ( ! $this->dirs ) {
			return;
		}

$this->dirs = array_map(
			static function ( $dir ) {

return str_replace( DIRECTORY_SEPARATOR, '/', $dir );
			},
			$this->dirs
		);

/**
		 * Allow modifying the levels of messages to suppress.
		 *
		 * @since 1.8.6
		 *
		 * @param bool $level Error levels of messages to suppress.
		 */
		$this->levels = (int) apply_filters(
			'wpforms_error_handler_level',
			E_WARNING | E_NOTICE | E_USER_WARNING | E_USER_NOTICE | E_DEPRECATED | E_USER_DEPRECATED
		);

// To chain error handlers, we must not specify the second argument and catch all errors in our handler.
		// phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_set_error_handler
		$this->previous_error_handler = set_error_handler( [ $this, 'error_handler' ] );
	}

/**
	 * Error handler.
	 *
	 * @since 1.8.5
	 *
	 * @param int    $level   Error level.
	 * @param string $message Error message.
	 * @param string $file    File produced an error.
	 * @param int    $line    Line number.
	 *
	 * @return bool
	 */
	public function error_handler( int $level, string $message, string $file, int $line ): bool { // phpcs:ignore Generic.CodeAnalysis.UnusedFunctionParameter.FoundAfterLastUsed

if ( ( $level & $this->levels ) === 0 ) {
			// Use standard error handler.
			return $this->previous_error_handler === null ?
				false :
				// phpcs:ignore PHPCompatibility.FunctionUse.ArgumentFunctionsReportCurrentValue.NeedsInspection
				(bool) call_user_func_array( $this->previous_error_handler, func_get_args() );
		}

$normalized_file = str_replace( DIRECTORY_SEPARATOR, '/', $file );

foreach ( $this->dirs as $dir ) {
			if ( strpos( $normalized_file, $dir ) !== false ) {
				// Suppress deprecated errors from this directory.
				return true;
			}
		}

// Use standard error handler.
		return $this->previous_error_handler === null ?
			false :
			// phpcs:ignore PHPCompatibility.FunctionUse.ArgumentFunctionsReportCurrentValue.NeedsInspection
			(bool) call_user_func_array( $this->previous_error_handler, func_get_args() );
	}
}

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