Make CSV deprecation less annoying to deal with (#15569)

Author: Girgias

UPGRADING

@@ -581,11 +581,11 @@ PHP 8.4 UPGRADE NOTES
 - SPL:
   . The SplFixedArray::__wakeup() method has been deprecated as it implements
     __serialize() and __unserialize() which need to be overwritten instead.
-  . Passing a non-empty string for the $enclosure parameter of:
+  . Using the default value for $escape parameter of:
     - SplFileObject::setCsvControl()
     - SplFileObject::fputcsv()
     - SplFileObject::fgetcsv()
-    is now deprecated.
+    is now deprecated. It must be passed explicitly either positionally or via named arguments.
     RFC: https://wiki.php.net/rfc/deprecations_php_8_4#deprecate_proprietary_csv_escaping_mechanism
 
 - Standard:
@@ -595,11 +595,11 @@ PHP 8.4 UPGRADE NOTES
     RFC: https://wiki.php.net/rfc/raising_zero_to_power_of_negative_number
   . Unserializing strings using the uppercase 'S' tag is deprecated.
     RFC: https://wiki.php.net/rfc/deprecations_php_8_4#unserialize_s_s_tag
-  . Passing a non-empty string for the $enclosure parameter of:
+  . Using the default value for $escape parameter of:
     - fputcsv()
     - fgetcsv()
     - str_getcsv()
-    is now deprecated.
+    is now deprecated. It must be passed explicitly either positionally or via named arguments.
     RFC: https://wiki.php.net/rfc/deprecations_php_8_4#deprecate_proprietary_csv_escaping_mechanism
 
 - XML:

ext/phar/tests/phar_oo_008.phpt

@@ -33,7 +33,7 @@ class MyCSVFile extends SplFileObject
 {
     function current(): array|false
     {
-        return parent::fgetcsv(',', '"');
+        return parent::fgetcsv(',', '"', escape: '');
     }
 }
 
@@ -44,14 +44,14 @@ $v = $phar['a.csv'];
 echo "===3===\n";
 while(!$v->eof())
 {
-    echo $v->key() . "=>" . join('|', $v->fgetcsv()) . "\n";
+    echo $v->key() . "=>" . join('|', $v->fgetcsv(escape: '')) . "\n";
 }
 
 echo "===4===\n";
 $v->rewind();
 while(!$v->eof())
 {
-    $l = $v->fgetcsv();
+    $l = $v->fgetcsv(escape: '');
     echo $v->key() . "=>" . join('|', $l) . "\n";
 }
 
@@ -66,7 +66,7 @@ class MyCSVFile2 extends SplFileObject
     function getCurrentLine(): string
     {
         echo __METHOD__ . "\n";
-        return implode('|', parent::fgetcsv(',', '"'));
+        return implode('|', parent::fgetcsv(',', '"', escape: ''));
     }
 }