如何在PHP中得到有用的錯誤消息？ - How can I get useful error messages in PHP?

問題：

Quite often I will try and run a PHP script and just get a blank screen back. 我常常會嘗試運行PHP腳本，而後返回黑屏。 No error message; 沒有錯誤信息； just an empty screen. 只是一個空白的屏幕。 The cause might have been a simple syntax error (wrong bracket, missing semicolon), or a failed function call, or something else entirely. 緣由多是簡單的語法錯誤（括號錯誤，分號丟失），函數調用失敗或徹底是其餘緣由。

It is very difficult to figure out what went wrong. 弄清楚出了什麼問題是很是困難的。 I end up commenting out code, entering "echo" statements everywhere, etc. trying to narrow down the problem. 我最終註釋掉了代碼，在各處輸入「 echo」語句，等等，試圖縮小問題的範圍。 But there surely must be a better way, right? 可是確定有更好的方法吧？

Is there a way to get PHP to produce a useful error message, like Java does? 有沒有辦法像Java同樣使PHP產生有用的錯誤消息？

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解決方案：

參考一： https://stackoom.com/question/3XpN/如何在PHP中得到有用的錯誤消息
參考二： https://oldbug.net/q/3XpN/How-can-I-get-useful-error-messages-in-PHP