duanqin9507 2015-09-22 17:16
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如何在Codeigniter中的字符串的最后一个索引中添加/替换字符?

I have a data like this:

"[-8.390865416667355, 115.23490905761719],[-8.483238563913513, 115.19783020019531],[-8.504970203442133, 115.40382385253906]"

I want to add character "[" in the first index of my string value and "]" in my last index. But i dont know how to insert the character in the last index of my string value so my string would be appear like this:

"[[-8.390865416667355, 115.23490905761719],[-8.483238563913513, 115.19783020019531],[-8.504970203442133, 115.40382385253906]]"

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  • douduan5073 2015-09-22 17:20
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    You could just concatenate, like so:

    $str = "[-8.390865416667355, 115.23490905761719],[-8.483238563913513, 115.19783020019531],[-8.504970203442133, 115.40382385253906]";
    
    $new_str = "[".$str."]";
    
    echo $new_str;
    
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