Fix #20475: Fix Formatter class asScientific() method for PHP 8.5 sprintf precision change (6 to 0)

framework/CHANGELOG.md

@@ -12,7 +12,7 @@ Yii Framework 2 Change Log
 - Bug #20453: Fix PHPStan/Psalm types in `yii\web\View` (max-s-lab)
 - Enh #20461: Add PHPStan/Psalm annotations for `yii\filters\auth\AuthInterface` (max-s-lab)
 - Bug #20459: Fix return type in `RequestParserInterface::parse` (max-s-lab)
-
+- Bug #20475: Fix `Formatter` class `asScientific()` method for PHP `8.5` `sprintf` precision change (`6` to `0`) (terabytesoftw)
 
 2.0.53 June 27, 2025
 --------------------

framework/i18n/Formatter.php

@@ -1261,10 +1261,12 @@ class Formatter extends Component
         if ($value === null) {
             return $this->nullDisplay;
         }
+
         $value = $this->normalizeNumericValue($value);
 
         if ($this->_intlLoaded) {
             $f = $this->createNumberFormatter(NumberFormatter::SCIENTIFIC, $decimals, $options, $textOptions);
+
             if (($result = $f->format($value)) === false) {
                 throw new InvalidArgumentException('Formatting scientific number value failed: ' . $f->getErrorCode() . ' ' . $f->getErrorMessage());
             }
@@ -1276,7 +1278,12 @@ class Formatter extends Component
             return sprintf("%.{$decimals}E", $value);
         }
 
-        return sprintf('%.E', $value);
+        // PHP 8.5+ changed sprintf('%.E') behavior: empty precision now defaults to '0' instead of '6'
+        // Specify explicit precision to maintain backward compatibility
+        // @link https://github.com/php/php-src/commit/5ed8b2be5533fbd4db95d9724d268eb9c9741f14
+        $format = PHP_VERSION_ID >= 80500 ? '%.6E' : '%.E';
+
+        return sprintf($format, $value);
     }
 
     /**