eval.php

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<?php
$optionsWithArgs = array( 'd' );

require_once __DIR__ . "/commandLine.inc";

if ( isset( $options['d'] ) ) {
    $d = $options['d'];
    if ( $d > 0 ) {
        $wgDebugLogFile = '/dev/stdout';
    }
    if ( $d > 1 ) {
        $lb = wfGetLB();
        $serverCount = $lb->getServerCount();
        for ( $i = 0; $i < $serverCount; $i++ ) {
            $server = $lb->getServerInfo( $i );
            $server['flags'] |= DBO_DEBUG;
            $lb->setServerInfo( $i, $server );
        }
    }
    if ( $d > 2 ) {
        $wgDebugFunctionEntry = true;
    }
}

$useReadline = function_exists( 'readline_add_history' )
    && Maintenance::posix_isatty( 0 /*STDIN*/ );

if ( $useReadline ) {
    $historyFile = isset( $_ENV['HOME'] ) ?
        "{$_ENV['HOME']}/.mweval_history" : "$IP/maintenance/.mweval_history";
    readline_read_history( $historyFile );
}

$e = null; // PHP exception
while ( ( $line = Maintenance::readconsole() ) !== false ) {
    if ( $e && !preg_match( '/^(exit|die);?$/', $line ) ) {
        // Internal state may be corrupted or fatals may occur later due
        // to some object not being set. Don't drop out of eval in case
        // lines were being pasted in (which would then get dumped to the shell).
        // Instead, just absorb the remaning commands. Let "exit" through per DWIM.
        echo "Exception was thrown before; please restart eval.php\n";
        continue;
    }
    if ( $useReadline ) {
        readline_add_history( $line );
        readline_write_history( $historyFile );
    }
    try {
        $val = eval( $line . ";" );
    } catch ( Exception $e ) {
        echo "Caught exception " . get_class( $e ) .
            ": {$e->getMessage()}\n" . $e->getTraceAsString() . "\n";
        continue;
    }
    if ( wfIsHHVM() || is_null( $val ) ) {
        echo "\n";
    } elseif ( is_string( $val ) || is_numeric( $val ) ) {
        echo "$val\n";
    } else {
        var_dump( $val );
    }
}

print "\n";