FATAL - E_ERROR -> BlockPatterns.php

[alexandrego]

I don't know if this is exactly where we report errors, but here's what I identified in our ecommerce this morning (05/06/2025 - 10am).

Error message: Uncaught TypeError: strpos(): Argument #1 ($haystack) must be of type string, null given in ....

function ( $category ) {
foreach ( self::CATEGORIES_PREFIXES as $prefix ) {

if ( strpos( $category['title'], $prefix ) !== false ) {
$parsed_category = str_replace( $prefix, '', $category['title'] );
$parsed_category = str_replace( '_', ' ', $parsed_category ); $category['title'] = ucfirst( $parsed_category );
}
}

return $category;
},

The error occurs because the strpos() function is receiving a null value instead of a string, which is not allowed in newer versions of PHP.

If $category['title'] is null, the error will be thrown. To fix this, I added a check to make sure $category['title'] is actually a string before calling strpos():

if ( isset($category['title']) && is_string($category['title']) ) {
foreach ( self::CATEGORIES_PREFIXES as $prefix ) {
if ( strpos( $category['title'], $prefix ) !== false ) {
$parsed_category = str_replace( $prefix, '', $category['title'] );
$parsed_category = str_replace( '_', ' ', $parsed_category );
$category['title'] = ucfirst( $parsed_category );
}
}
}