Helpers.php
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<?php
namespace AIOSEO\Plugin\Common\Schema;
// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Contains helper methods for our schema classes.
*
* @since 4.2.5
*/
class Helpers {
/**
* Checks whether the schema markup feature is enabled.
*
* @since 4.2.5
*
* @return bool Whether the schema markup feature is enabled or not.
*/
public function isEnabled() {
$isEnabled = ! in_array( 'enableSchemaMarkup', aioseo()->internalOptions->deprecatedOptions, true ) || aioseo()->options->deprecated->searchAppearance->global->schema->enableSchemaMarkup;
return ! apply_filters( 'aioseo_schema_disable', ! $isEnabled );
}
/**
* Strips HTML and removes all blank properties in each of our graphs.
* Also parses properties that might contain smart tags.
*
* @since 4.0.13
* @version 4.2.5
*
* @param array $data The graph data.
* @param string $parentKey The key of the group parent (optional).
* @return array The cleaned graph data.
*/
public function cleanAndParseData( $data, $parentKey = '' ) {
foreach ( $data as $k => &$v ) {
if ( is_array( $v ) ) {
$v = $this->cleanAndParseData( $v, $k );
} elseif ( is_numeric( $v ) || is_bool( $v ) ) {
// Do nothing.
} else {
// Check if the prop can contain some HTML tags.
if (
isset( aioseo()->schema->htmlAllowedFields[ $parentKey ] ) &&
in_array( $k, aioseo()->schema->htmlAllowedFields[ $parentKey ], true )
) {
$v = trim( wp_kses_post( $v ) );
} else {
$v = trim( wp_strip_all_tags( $v ) );
}
$v = aioseo()->tags->replaceTags( $v, get_the_ID() );
}
if ( empty( $v ) && ! in_array( $k, aioseo()->schema->nullableFields, true ) ) {
unset( $data[ $k ] );
} else {
$data[ $k ] = $v;
}
}
return $data;
}
/**
* Sorts the schema data and then returns it as JSON.
* We temporarily change the floating point precision in order to prevent rounding errors.
* Otherwise e.g. 4.9 could be output as 4.90000004.
*
* @since 4.2.7
*
* @param array $schema The schema data.
* @param bool $isValidator Whether we're grabbing the output for the validator.
* @return string The schema as JSON.
*/
public function getOutput( $schema, $isValidator = false ) {
$schema['@graph'] = apply_filters( 'aioseo_schema_output', $schema['@graph'] );
$schema['@graph'] = $this->cleanAndParseData( $schema['@graph'] );
// Sort the graphs alphabetically.
usort( $schema['@graph'], function ( $a, $b ) {
return strcmp( $a['@type'], $b['@type'] );
} );
// Allow users to control the default json_encode flags.
// Some users report better SEO performance when non-Latin unicode characters are not escaped.
$jsonFlags = apply_filters( 'aioseo_schema_json_flags', 0 );
$json = isset( $_GET['aioseo-dev'] ) || $isValidator
? aioseo()->helpers->wpJsonEncode( $schema, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE )
: aioseo()->helpers->wpJsonEncode( $schema, $jsonFlags );
return $json;
}
}