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24 lines
448 B
24 lines
448 B
<?php
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function func_a(){
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echo "func_a<br>";
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}
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function func_b($str='')
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{
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echo $str.'<bt>';
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}
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function func_c($string)
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{
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echo $string;
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}
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$funcname='func_a';
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$funcname(); //变量()就是可变函数，会执行与funcname命名相同的函数执行；
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$funcname='func_b';
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$funcname('this is func_b<br>');
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$funcname='func_c';
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$funcname('this is func_c <br>');
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?>
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