Errors are normal. The goal is to understand them quickly and fix with confidence.

## Turn on errors in development

```php
ini_set('display_errors', '1');
ini_set('display_startup_errors', '1');
error_reporting(E_ALL);
```

Use this in local/dev only, not production.

## Common debugging tools

### var_dump()
```php
var_dump($user);
```

### print_r()
```php
print_r($arr);
```

### die() / exit()
```php
die("Stop here");
```

## Production rule

In production:
- do not show errors to users
- log them instead

```php
ini_set('display_errors', '0');
ini_set('log_errors', '1');
ini_set('error_log', __DIR__ . '/php-error.log');
```

> Next: JSON, APIs, and handling modern web data.

Learn how to read errors, show them in dev, hide them in production, and debug faster.

PHP Error Handling and Debugging (Professional Basics)

Learn PHP programming for server-side web development. Master PHP syntax, functions, and building dynamic websites.

PHP Error Handling and Debugging (Professional Basics)

Turn on errors in development

Common debugging tools

var_dump()

print_r()

die() / exit()

Production rule

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