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PHP converts string to uppercase function strtoupper()
- 黄舟Original
- 2017-11-06 10:42:031688browse
Example
Convert all characters to uppercase:
<?php
echo strtoupper("Hello WORLD!");
?>Definition and usage
strtoupper() function converts a string to uppercase.
Note: This function is binary safe.
Related functions:
strtolower() - Convert the string to lowercase
lcfirst() - Convert the string to lowercase Convert the first character in the string to lowercase
ucfirst() - Convert the first character in the string to uppercase
ucwords() - Convert the first character in the string to uppercase Convert the first character of each word in the string to uppercase
Syntax
strtoupper(string)
| Parameters | Description |
| string | Required. Specifies the string to be converted. |
Technical details
| Return value: | Returns the string converted to uppercase. |
| PHP version: | 4+ |
public function set_kw($kw){
$_intAsc=ord(substr($kw,0,1));
if(($_intAsc>64 and $_intAsc<91)or($_intAsc>96 and $_intAsc<123)){
$this->set_query_q('pinyin:'.strtoupper($kw).'*');
}else{
$this->set_dismax_model();
$this->set_query_q($kw);
$this->set_query_qf("name^10 address^5");
}
}
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