String token: space
Wednesday, July 22nd, 2009<?
$token = strtok("open-source HTML-embedded server-side Web scripting"," ");
while($token){
print($token . "<BR>");
$token = strtok(" ");
}
?>
String Validation
Monday, July 20th, 2009<html>
<head>
<title>String Validation</title>
<script language="JavaScript">
<!–
function isString(textObj) {
var newValue = textObj.value;
var newLength = newValue.length;
var extraChars=". -,";
var search;
for(var i = 0; i != newLength; i++) {
aChar = newValue.substring(i,i+1);
aChar = aChar.toUpperCase();
search = extraChars.indexOf(aChar);
if(search == -1 && (aChar < "A" || aChar > "Z") ) {
return false;
}
}
return true;
}
//–>
</script>
</head>
<body>
<h1>String Validation</h1>
<form name="form1">
<input type="text" size=16 name="data">
<input type="button" name="CheckButton" value="Validate" onClick="document.form1.result.value = ” +
isString(document.form1.data)">
<br> Result <input type="text" size=16 name="result">
</form>
</body>
</html>
quotemeta(): escapes \ + * ? [ ^ ] ( $ )
Wednesday, July 8th, 2009<?
$literal_string = ‘AAA ($, *) are very special to me\n<BR>‘;
$qm_string = quotemeta($literal_string);
echo $qm_string;
?>
String slicing: extrace section
Monday, July 6th, 2009S = ’spam‘
print S[1:3], S[1:], S[:-1] # slicing: extract section
Return string length: how to use strlen
Sunday, June 28th, 2009#include <stdio.h>
#include <string.h>
int main ()
{
char str[256];
printf ("Enter a sentence: ");
gets (str);
printf ( "%s is %u characters long\n", str, strlen( str ) );
return 0;
}
