[請益] 用preg_match_all找pattern
請問我想用preg_match_all找下面的patten怎樣寫法會比較好?謝謝
$string = "f1/f2/f3/f4"
f1,f2,f3,f4用"/"分開 f1, f2,f3,f4可有可無
f1:數字0到23, 可多個數字,每數字用","分開, 有range形式為 "數字-數字". 如 0,2-23,7
f2:數字1到31,可多個數字,每數字用","分開 如 0,18,9,23,31
f3:數字0到6,可多個數字,每數字用","分開 如 0,1,3,7
f4:數字0到11,可多個數字,每數字用","分開 如 0,1,7,11
如
$string = ///;
$string = 0,2-23,7//0,1,3,7/;
$string = 1,4/0,5,23/2,0,1,3/0,4;
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