StaticArrayWriter.php

Go to the documentation of this file.

<?php
namespace Wikimedia;
 
class StaticArrayWriter {
    public function create( array $data, $header = 'Automatically generated' ) {
        return self::write( $data, $header );
    }
 
    public static function write( array $data, $header ) {
        $code = "<?php\n"
            . "// " . implode( "\n// ", explode( "\n", $header ) ) . "\n"
            . "return " . self::encodeArray( $data ) . ";\n";
        return $code;
    }
 
    public static function writeClass( array $data, array $layout ) {
        $code = "<?php\n"
            . "// " . implode( "\n// ", explode( "\n", $layout['header'] ) ) . "\n"
            . "\n"
            . "namespace {$layout['namespace']};\n"
            . "\n"
            . "class {$layout['class']} {\n"
            . "\tpublic const {$layout['const']} = " . self::encodeArray( $data, "\t\t" ) . ";\n}\n";
        return $code;
    }
 
    private static function encodeArray( array $array, string $tabs = "\t" ): string {
        $code = "[\n";
        if ( array_is_list( $array ) ) {
            foreach ( $array as $value ) {
                $code .= $tabs . self::encodeValue( $value, $tabs ) . ",\n";
            }
        } else {
            foreach ( $array as $key => $value ) {
                $code .= $tabs . var_export( $key, true ) . ' => ' .
                    self::encodeValue( $value, $tabs ) . ",\n";
            }
        }
        return $code . substr( $tabs, 0, -1 ) . ']';
    }
 
    private static function encodeValue( $value, string $tabs ): string {
        if ( is_array( $value ) ) {
            return self::encodeArray( $value, $tabs . "\t" );
        }
 
        // var_export() exports nulls as uppercase NULL which
        // violates our own coding standards.
        return $value === null ? 'null' : var_export( $value, true );
    }
}