(PHP 4, PHP 5)
strcspn — Find length of initial segment not matching mask
Returns the length of the initial segment of str1 which does not contain any of the characters in str2 .
The start position of the string to examine.
The length of the string to examine.
Returns the length of the segment as an integer.
版本 | 說明 |
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4.3.0 | The start and length were added |
Note: 本函式可安全用於二進位對象。