PHP settings errors

This article provides solutions for PHP settings errors.

PHP memory limit error

The readiness checks makes sure you have at least 1GB of memory set aside for PHP processes. This setting should be sufficient for most installations, including installing optional sample data. However, we recommend at least 2GB for debugging.

To increase your PHP memory limit:

max-input-vars error due to large forms

Configurations with a high number of storeviews, products, attributes, or options can generate forms that exceed the preset PHP limit. If the number of values sent surpasses the max-input-vars limit set within php.ini (default is 1000), the remaining data is not transferred and those database values do not get updated. When this occurs, a warning appears in the PHP log:

PHP message: PHP Warning: Unknown: Input variables exceeded 1000. To increase the limit change max_input_vars in php.ini.

There is no ‘proper’ value for max-input-vars; it depends on the size and complexity of your configuration. Modify the value in the php.ini file as needed. See Required PHP settings.

xdebug maximum function nesting level error

See During installation, xdebug maximum function nesting level error.

Errors display when you access a PHTML template

Error text is typically:

Parse error: syntax error, unexpected 'data' (T_STRING)

Solution: Set asp_tags = off in php.ini

Multiple templates have syntax for support abstract level on templates (use different templates engines like Twig) wrapped in <% %> tags, like this template for displaying a product image:

<img
    class="product-image"
    src="<%- data.url %>"
    data-position="<%- data.position %>"
    alt="<%- data.label %>" />

More information about asp_tags.

Edit php.ini and set asp_tags = off. For more information, see Required PHP settings.