Optimize grabbing of first char

11 years ago · 976fe48a72
parent 94175ce432
commit 976fe48a72
1 changed files with 3 additions and 2 deletions
--- a/src/Composer/Autoload/ClassLoader.php
+++ b/src/Composer/Autoload/ClassLoader.php
@ -98,7 +98,8 @@ class ClassLoader

            return;
        }
-        $first = substr($prefix, 0, 1);
+
+        $first = $prefix[0];
        if (!isset($this->prefixes[$first][$prefix])) {
            $this->prefixes[$first][$prefix] = (array) $paths;

@ -216,7 +217,7 @@ class ClassLoader

        $classPath .= strtr($className, '_', DIRECTORY_SEPARATOR) . '.php';

-        $first = substr($class, 0, 1);
+        $first = $class[0];
        if (isset($this->prefixes[$first])) {
            foreach ($this->prefixes[$first] as $prefix => $dirs) {
                if (0 === strpos($class, $prefix)) {