strpos/stripos(具有严格的比较)失败

Question

我目前有以下strpos/stripos(两者都尝试过，不会改变结果(，用于标记论坛帖子中的某些针头。

if (stripos($row->message, (string)$commit) !== false) {
// Do stuff
}

然而，在少数情况下，当haystack($row->message(包含needle($commit((使用强制转换，因为$commit可以是int(时，Stuff通常工作得很好。strpos/stripos返回false。

例如：

$test = stripos($row->message, (string)$commit);

非工作场景的一个例子是：

// (string)$commit 
string(7) "818df50"
// $row->message
string(321) "Intro. Crashes as soon as the main menu is shown. Graphics are horribly broken, no fixes have been found as of yet. [attachment=194] Build Used: Pull Request #3333 (0.0.3-5929) -> RPCS3-v0.0.3-2017-08-27-818f50b Side note: States it can display at 1080p, yet it is boxed in 1080p. However, it is fine in 720p."
// $test (strpos/stripos) 
bool(false)

一个工作场景的例子是：

// (string)$commit
string(7) "2570911" 
// $row->message
string(219) "RPCS3 v0.0.3-3-2570911 Alpha The game doesn't even show its graphics window. [quote] ·F 0:00:34.138812 {PPU[0x1000000] Thread (main_thread) [0x0087c094]} MEM: Access violation writing location 0xcffff2d0 [/quote]" int(15) [2570911]
// $test (strpos/stripos)
int(15) [2570911]

我不知道我是否遗漏了一些非常明显的东西，我检查了几次，方法似乎是正确的。

注意：我知道有几十种方法可以做到这一点，但在这个特定的场景中，我需要这些字符串比较

提前谢谢。

Answer 1

在您的示例中。。。

// (string)$commit 
string(7) "818df50"
// $row->message
string(321) "Intro. Crashes as soon as the main menu is shown. Graphics are horribly broken, no fixes have been found as of yet. [attachment=194] Build Used: Pull Request #3333 (0.0.3-5929) -> RPCS3-v0.0.3-2017-08-27-818f50b Side note: States it can display at 1080p, yet it is boxed in 1080p. However, it is fine in 720p."
// $test (strpos/stripos) 
bool(false)

干草堆中未包含针818df50。haystack包含一个非常接近的字符串(818f50(，但这不是一个完全匹配的字符串。

所以。。。它正在进行正确的操作。