无法理解行为
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为什么即使我的代码是这样的：
if ( ! function_exists(\'get_values\')){
global $str;
function getValues($getThem, $tpar, $vpiso, $tcomi, $tgas, $ttotal){
$totalPares = $tpar;
$ventasPiso = $vpiso;
$totalComisiones = $tcomi;
$totalGastos = $tgas;
$totalTotal = $ttotal;
$str = $totalPares . \",\" . $ventasPiso . \",\" . $totalComisiones . \",\" . $totalGastos . \",\" . $totalTotal;
return $str;
}
function getEm(){
return $str;
}
}
没有找到相关结果
已邀请:
3 个回复
薄扩络拜
您需要研究变量范围。函数有其自身的作用域，除非您一开始有ѭ2to来访问该函数之外的变量。另请注意，使用全局变量是“ nono”，应不惜一切代价避免使用。function getValues($getThem, $tpar, $vpiso, $tcomi, $tgas, $ttotal){ global $str; $totalPares = $tpar; $ventasPiso = $vpiso; $totalComisiones = $tcomi; $totalGastos = $tgas; $totalTotal = $ttotal; $str = $totalPares . \",\" . $ventasPiso . \",\" . $totalComisiones . \",\" . $totalGastos . \",\" . $totalTotal; return $str; }感秆暴壳
class MyClass { private $str = \"a\"; public function getValues($getThem, $tpar, $vpiso, $tcomi, $tgas, $ttotal){ $totalPares = $tpar; $ventasPiso = $vpiso; $totalComisiones = $tcomi; $totalGastos = $tgas; $totalTotal = $ttotal; $str = $totalPares . \",\" . $ventasPiso . \",\" . $totalComisiones . \",\" . $totalGastos . \",\" . $totalTotal; return $str; } public function getEm(){ return $this->str; } }如果仅使用静态属性和方法创建类，则无需实例化（）。厢界山攀
if ( ! function_exists(\'get_values\')){ function getValues($getThem, $tpar, $vpiso, $tcomi, $tgas, $ttotal){ global $str; ##### <- place it here $totalPares = $tpar; $ventasPiso = $vpiso; $totalComisiones = $tcomi; $totalGastos = $tgas; $totalTotal = $ttotal; $str = $totalPares . \",\" . $ventasPiso . \",\" . $totalComisiones . \",\" . $totalGastos . \",\" . $totalTotal; return $str; } function getEm(){ global $str; ##### <- place it here return $str; } }的全局变量对我来说听起来像是在问麻烦。给它起一个更好地反映其所属名称和含义的名称。 string10ѭ尽管弦说不多。查找名称的一些技巧。