63 lines
1.7 KiB
PHP
63 lines
1.7 KiB
PHP
<?php
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/**
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* Class AMP_HTML_Utils
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*
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* @package AMP
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*/
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/**
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* Class with static HTML utility methods.
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*/
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class AMP_HTML_Utils {
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/**
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* Generates HTML markup for a given tag, attributes and content.
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*
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* @param string $tag_name Tag name.
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* @param array $attributes Associative array of $attribute => $value pairs.
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* @param string $content Inner content for the generated node.
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* @return string HTML markup.
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*/
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public static function build_tag( $tag_name, $attributes = array(), $content = '' ) {
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$attr_string = self::build_attributes_string( $attributes );
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return sprintf( '<%1$s %2$s>%3$s</%1$s>', sanitize_key( $tag_name ), $attr_string, $content );
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}
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/**
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* Generates a HTML attributes string from given attributes.
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*
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* @param array $attributes Associative array of $attribute => $value pairs.
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* @return string HTML attributes string.
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*/
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public static function build_attributes_string( $attributes ) {
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$string = array();
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foreach ( $attributes as $name => $value ) {
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if ( '' === $value ) {
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$string[] = sprintf( '%s', sanitize_key( $name ) );
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} else {
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$string[] = sprintf( '%s="%s"', sanitize_key( $name ), esc_attr( $value ) );
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}
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}
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return implode( ' ', $string );
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}
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/**
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* Checks whether the given string is valid JSON.
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*
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* @param string $data String hopefully containing JSON.
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* @return bool True if the string is valid JSON, false otherwise.
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*/
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public static function is_valid_json( $data ) {
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if ( ! empty( $data ) ) {
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$decoded = json_decode( $data );
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if ( function_exists( 'json_last_error' ) ) {
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return ( json_last_error() === JSON_ERROR_NONE );
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} else {
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// For PHP 5.2 back-compatibility.
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return null !== $decoded;
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}
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}
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return false;
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}
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}
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