From e7507ab70fa795c69ef934c1f2e11c09e2e04fe0 Mon Sep 17 00:00:00 2001
From: frankprins <f.prins@temper.works>
Date: Tue, 25 Oct 2022 15:41:01 +0200
Subject: [PATCH] Add BC version that supports both 7.4 and 8.0

---
 .github/workflows/run-tests.yml |  2 +-
 composer.json                   |  2 +-
 src/Backtrace.php               |  4 ++--
 src/Cache.php                   | 16 ++++++++--------
 src/functions.php               |  2 +-
 5 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index c9901dc..ae6e63c 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -11,7 +11,7 @@ jobs:
         runs-on: ${{ matrix.os }}
         strategy:
             matrix:
-                php: [8.1, 8.0]
+                php: [8.1, 8.0, 7.4]
                 dependency-version: [prefer-lowest, prefer-stable]
                 os: [ubuntu-latest, windows-latest]
 
diff --git a/composer.json b/composer.json
index 5af750f..187f597 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
         }
     ],
     "require": {
-        "php": "^8.0"
+        "php": "^7.4 || ^8.0"
     },
     "require-dev": {
         "pestphp/pest": "^1.21",
diff --git a/src/Backtrace.php b/src/Backtrace.php
index 4374d48..d5cb094 100644
--- a/src/Backtrace.php
+++ b/src/Backtrace.php
@@ -30,7 +30,7 @@ public function getObjectName(): ?string
         return $this->trace['class'] ?? null;
     }
 
-    public function getObject(): mixed
+    public function getObject()
     {
         if ($this->globalFunction()) {
             return $this->zeroStack['file'];
@@ -46,7 +46,7 @@ public function getHash(): string
         }, $this->getArguments());
 
         $prefix = $this->getObjectName() . $this->getFunctionName();
-        if (str_contains($prefix, '{closure}')) {
+        if (strpos($prefix, '{closure}') !== false) {
             $prefix = $this->zeroStack['line'];
         }
 
diff --git a/src/Cache.php b/src/Cache.php
index 927ed43..c35a93c 100644
--- a/src/Cache.php
+++ b/src/Cache.php
@@ -3,24 +3,24 @@
 namespace Spatie\Once;
 
 use Countable;
-use WeakMap;
+use SplObjectStorage;
 
 class Cache implements Countable
 {
     protected static self $cache;
 
-    public WeakMap $values;
+    public SplObjectStorage $values;
 
     protected bool $enabled = true;
 
-    public static function getInstance(): static
+    public static function getInstance(): self
     {
-        return static::$cache ??= new static;
+        return static::$cache ??= new self;
     }
 
     protected function __construct()
     {
-        $this->values = new WeakMap();
+        $this->values = new SplObjectStorage();
     }
 
     public function has(object $object, string $backtraceHash): bool
@@ -33,12 +33,12 @@ public function has(object $object, string $backtraceHash): bool
         return array_key_exists($backtraceHash, $this->values[$object]);
     }
 
-    public function get($object, string $backtraceHash): mixed
+    public function get($object, string $backtraceHash)
     {
         return $this->values[$object][$backtraceHash];
     }
 
-    public function set(object $object, string $backtraceHash, mixed $value): void
+    public function set(object $object, string $backtraceHash, $value): void
     {
         $cached = $this->values[$object] ?? [];
 
@@ -54,7 +54,7 @@ public function forget(object $object): void
 
     public function flush(): self
     {
-        $this->values = new WeakMap();
+        $this->values = new SplObjectStorage();
 
         return $this;
     }
diff --git a/src/functions.php b/src/functions.php
index 8716999..0b1689c 100644
--- a/src/functions.php
+++ b/src/functions.php
@@ -9,7 +9,7 @@
  * @param (callable(): T) $callback
  * @return T
  */
-function once(callable $callback): mixed
+function once(callable $callback)
 {
     $trace = debug_backtrace(
         DEBUG_BACKTRACE_PROVIDE_OBJECT, 2