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pdo_logger.php | 20260921_175631.php Initial Domain Snapshot

<?php
/* =========================================================================
   File: /erp/modules/dev/pdo_logger.php
   Purpose: Best-effort SQL table sniffing; collects table names to global
   Scope : Page-local; safe to include anywhere. No PDO replacement required.
   ========================================================================= */

if (!defined('FLAG_PAGE_USAGE_LOG') || FLAG_PAGE_USAGE_LOG !== true) {
  return;
}

if (!isset($GLOBALS['_MM_SQL_SNIFF_TABLES'])) {
  $GLOBALS['_MM_SQL_SNIFF_TABLES'] = [];
}

if (!function_exists('mm_sql_sniff_tables')) {
  function mm_sql_sniff_tables($sql) {
    $tables = [];
    $s = ' '.strtolower($sql).' ';
    // naive patterns: FROM, JOIN, INTO, UPDATE
    $patterns = [
      '/\bfrom\s+`?([a-z0-9_]+)`?/i',
      '/\bjoin\s+`?([a-z0-9_]+)`?/i',
      '/\binto\s+`?([a-z0-9_]+)`?/i',
      '/\bupdate\s+`?([a-z0-9_]+)`?/i',
      '/\btable\s+`?([a-z0-9_]+)`?/i',
    ];
    foreach ($patterns as $p) {
      if (preg_match_all($p, $sql, $m)) {
        foreach ($m[1] as $t) $tables[] = $t;
      }
    }
    return array_values(array_unique($tables));
  }
}

/* ---- Hook PDO::prepare and ::query via userland proxy (opt-in) ----
   Usage: after $pdo ready → wrap:
     $pdo = new MM_PDO_Proxy($pdo);
------------------------------------------------------------------------ */
if (!class_exists('MM_PDO_Proxy')) {
  class MM_PDO_Proxy {
    private PDO $pdo;
    function __construct(PDO $pdo) { $this->pdo = $pdo; }

/* ---- Delegate common PDO props/const ---- */
    public function __get($n) { return $this->pdo->$n; }
    public function __set($n,$v) { $this->pdo->$n = $v; }
  }
}