- var_dump: documentation ( source)
<?php
$pdo = new PDO('mysql:dbname=testdb;host=127.0.0.1;charset=utf8mb4', 'local');
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$pdo->setAttribute(PDO::ATTR_EMULATE_PREPARES,false);
var_dump($s->execute([1]), $s->fetchall());
/*
PHP Warning: Uncaught PDOException: SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''1'' at line 1 in php shell code:1
Stack trace:
#0 php shell code(1): PDOStatement->execute(Array)
#1 {main}
thrown in php shell code on line 1
*/