here.php(文件已创建)
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| 1 | + | <?php | |
| 2 | + | ||
| 3 | + | /** | |
| 4 | + | * Returns caller class/file name, function and line where current | |
| 5 | + | * | |
| 6 | + | * Potentially doesn't cover all cases, but is simple and pretty handy for use in frameworks. | |
| 7 | + | * | |
| 8 | + | * @param bool $as_array result as array or string in this format: `<file|class>:<func>():<line>` | |
| 9 | + | * @return string|array | |
| 10 | + | */ | |
| 11 | + | function here(bool $as_array = false): string|array | |
| 12 | + | { | |
| 13 | + | $trace = debug_backtrace(!DEBUG_BACKTRACE_PROVIDE_OBJECT | DEBUG_BACKTRACE_IGNORE_ARGS, 2); | |
| 14 | + | return $as_array | |
| 15 | + | ? [ | |
| 16 | + | 'from' => $trace[1]['class'] ?? $trace[0]['file'], | |
| 17 | + | 'function' => $trace[1]['function'], | |
| 18 | + | 'line' => $trace[0]['line'], | |
| 19 | + | ] | |
| 20 | + | : sprintf( | |
| 21 | + | '%s%s%s():%s', | |
| 22 | + | $trace[1]['class'] ?? $trace[0]['file'], | |
| 23 | + | $trace[1]['type'] ?? '::', | |
| 24 | + | $trace[1]['function'], | |
| 25 | + | $trace[0]['line'] | |
| 26 | + | ); | |
| 27 | + | } | |
| 28 | + | ||
| 29 | + | // Usage: | |
| 30 | + | class MyClass { | |
| 31 | + | public function test(): string { | |
| 32 | + | return here(); | |
| 33 | + | } | |
| 34 | + | } | |
| 35 | + | echo (new MyClass)->test(); // MyClass->test():4 | |
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