27 lines
1.6 KiB
PHP
27 lines
1.6 KiB
PHP
<ul>
|
|
<li \>The <i>CONCAT</i> function returns a string that is a concatenation of its arguments.
|
|
<br \><br \>
|
|
<li \>The second and third arguments of the <i>SUBSTRING</i> function denote the starting position and length of
|
|
the substring to be returned. These arguments are integers. The first position of a string is denoted by 1.
|
|
The <i>SUBSTRING</i> function returns a string.
|
|
<br \><br \>
|
|
|
|
<li \>The <i>TRIM</i> function trims the specified character from a string. If the character to be trimmed is not
|
|
specified, it is assumed to be space (or blank). The optional trim_character is a single-character string
|
|
literal or a character-valued input parameter (i.e., char or Character)[30]. If a trim specification is
|
|
not provided, BOTH is assumed. The <i>TRIM</i> function returns the trimmed string.
|
|
<br \><br \>
|
|
<li \>The <i>LOWER</i> and <i>UPPER</i> functions convert a string to lower and upper case, respectively. They return a
|
|
string. <br \><br \>
|
|
<li \>
|
|
The <i>LOCATE</i> function returns the position of a given string within a string, starting the search at a specified
|
|
position. It returns the first position at which the string was found as an integer. The first argument
|
|
is the string to be located; the second argument is the string to be searched; the optional third argument
|
|
is an integer that represents the string position at which the search is started (by default, the beginning of
|
|
the string to be searched). The first position in a string is denoted by 1. If the string is not found, 0 is
|
|
returned.[31]
|
|
<br \><br \>
|
|
<li \>The <i>LENGTH</i> function returns the length of the string in characters as an integer.
|
|
|
|
</ul>
|