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{
echo $frm_tag[$i]."<br>";
if($i==0){
$str_tag = $frm_tag[$i];
}else{
$str_tag = $str_tag.",".$frm_tag[$i];
}
}
echo ($str_tag);
}
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<input type="checkbox" name="weeks[]" id="weeks" value=2>
<input type="checkbox" name="weeks[]" id="weeks" value=3>
<input type="checkbox" name="weeks[]" id="weeks" value=1>
<input type="checkbox" name="weeks[]" id="weeks" value=2>
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echo $weeks[1]."<br>";
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$str =implode(',',$array);
echo $str;
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