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execute scalar for php

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retrieve only one value from the query

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  1. function execute_scalar($sql,$def="") {
  2. 	$rs = mysql_query($sql) or die(mysql_error().$sql);
  3. 	if (mysql_num_rows($rs)) {
  4. 		$r = mysql_fetch_row($rs);
  5. 		mysql_free_result($rs);
  6. 		return $r[0];
  7. 		}
  8. 	return $def;
  9. }

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