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PHP important characters ShareNov 12, 2016 pm 02:48 PM
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PHP learning and communication
In writing PHP you will see many fixed keywords and characters like $


  • < ;/li & gt; wait for several people who think of commonly used sharing below
    Font design and effect:

    & lt; i & gt; & lt;/i & gt; used to mark the text oblique body;

    & lt; b & lt;/b & gt; To mark the text bold; & & lt; u & gt; & lt;/u & gt; use to mark the lines of text;

    & lt; strong & gt; & lt;/strong & gt; ; is also used to mark text in italics;

                                                                
                                                                                                                                                                              

    for paragraphs

    Use for line breaks

     
    Pre-formatted tags

    , , ,                                                               Such as bold, italics, underline, subscript, superscript, etc.


    Font tag

      ,

        Lists use



        Horizontal line labels


                                                                          using
        ;、 tag.
        Table size keyword

        Width
        The width of the table, which can be expressed in pixels or percentages
        Height
        The height of the table, which can be expressed in pixels or percentages
        Align
        The horizontal alignment of the table on the page
        Bgcolor
        The background color of the table
        Border
        The border thickness (pixels) of the table can be set to 0
        Bordercolor
        The border color of the table
        Cellspacing
        The spacing between cells
        Cellpadding
        The spacing between the content in the table and the cells



        Finally Let’s look at the difference between single quotes and double quotes in PHP:
        1. Strings can be enclosed in single quotes or double quotes. There is no length limit, but strings using double quotes have stronger capabilities. For example, they can identify variables in the string. More escape characters:
        echo' simply means
        ';
        $i=10;
        echo' I can recognize this variable: $i';
        ?> If double quotes are used, the displayed result is I can identify this variable: 10
        If single quotes are used, the displayed result is I can identify this variable: $ia
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