ctype_space

(PHP 4 >= 4.0.4, PHP 5, PHP 7)

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说锟斤拷

ctype_space ( string $text ) : bool

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text

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Example #1 一锟斤拷 ctype_space() 锟斤拷锟斤拷

<?php
$strings = array('string1' => "\n\r\t", 'string2' => "\narf12", 'string3' => '\n\r\t');
foreach ($strings as $name => $testcase) {
    if (ctype_space($testcase)) {
        echo "The string '$name' consists of all whitespace characters.\n";
    } else {
        echo "The string '$name' does not consist of all whitespace characters.\n";
    }
}
?>

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The string 'string1' consists of all whitespace characters.
The string 'string2' does not consist of all whitespace characters.
The string 'string3' does not consist of all whitespace characters.

注锟斤拷

Note:

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锟轿硷拷

  • ctype_cntrl() - 锟斤拷锟斤拷锟斤拷锟街凤拷锟斤拷锟�
  • ctype_graph() - 锟斤拷锟缴达拷印锟街凤拷锟斤拷锟斤拷猓拷崭锟斤拷锟斤拷
  • ctype_punct() - 锟斤拷锟缴达拷印锟斤拷锟街凤拷锟角诧拷锟角诧拷锟斤拷锟斤拷锟秸白★拷锟斤拷锟街猴拷锟斤拷母