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    ▪php数组函数序列之in_array() - 查找数组中是否存在指定值       in_array()定义和用法 in_array() 函数查找数组中是否存在指定值。 语法 in_array(value,array,type)参数 描述 value 必需。规定要在数组搜索的值。 array 必需。规定要搜索的数组。 type 可选。如果设置.........

    ▪php中常用字符串处理代码片段整理       移除 HTML 标签 代码如下: $text = strip_tags($input, ""); 上面的函数主要是使用了strip_tags,具体的使用说明参考。 　　返回 $start 和 $end 之间的文本 代码如下: function GetBetween($content,$start,$end){ $r = .........

    ▪php smarty截取中文字符乱码问题?gb2312/utf-8       一般网站页面的显示都不可避免的会涉及子字符串的截取，这个时候truncate就派上用场了，但是它只适合英文用户，对与中文用户来说，使用 truncate会出现乱码，而且对于中文英文混合串来.........

代码如下:

<?php
$people = array("Peter", "Joe", "Glenn", "Cleveland");

if (in_array("Glenn",$people))
{
echo "Match found";
}
else
{
echo "Match not found";
}
?>

代码如下:

<?php
$people = array("Peter", "Joe", "Glenn", "Cleveland", 23);

if (in_array("23",$people, TRUE))
{
echo "Match found<br />";
}
else
{
echo "Match not found<br />";
}if (in_array("Glenn",$people, TRUE))
{
echo "Match found<br />";
}
else
{
echo "Match not found<br />";
}if (in_array(23,$people, TRUE))
{
echo "Match found<br />";
}
else
{
echo "Match not found<br />";
}
?>

代码如下:

$text = strip_tags($input, "");

代码如下:

function GetBetween($content,$start,$end){
$r = explode($start, $content);
if (isset($r[1])){
$r = explode($end, $r[1]);
return $r[0];
}
return '';
}

代码如下:

$url = "Jean-Baptiste Jung (http://www.)";
$url = preg_replace("#http://([A-z0-9./-]+)#", '<a href="http://www.catswhocode.com/blog/$1" >$0</a>', $url);

代码如下:

function split_to_chunks($to,$text){
$total_length = (140 - strlen($to));
$text_arr = explode(" ",$text);
$i=0;
$message[0]="";
foreach ($text_arr as $word){
if ( strlen($message[$i] . $word . ' ') <= $total_length ){
if ($text_arr[count($text_arr)-1] == $word){
$message[$i] .= $word;
} else {
$message[$i] .= $word . ' ';
}
} else {
$i++;
if ($text_arr[count($text_arr)-1] == $word){
$message[$i] = $word;
} else {
$message[$i] = $word . ' ';
}
}
}
return $message;
}

代码如下:

$string = preg_replace('/\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|$!:,.;]*[A-Z0-9+&@#\/%=~_|$]/i', '', $string);

代码如下:

function slug($str){
$str = strtolower(trim($str));
$str = preg_replace('/[^a-z0-9-]/', '-', $str);
$str = preg_replace('/-+/', "-", $str);
return $str;
}

代码如下:

$fh = fopen("contacts.csv", "r");
while($line = fgetcsv($fh, 1000, ",")) {
echo "Contact: {$line[1]}";
}

代码如下:

function contains($str, $content, $ignorecase=true){
if ($ignorecase){
$str = strtolower($str);
$content = strtolower($content);
}
return strpos($content,$str) ? true : false;
}

代码如下:

function String_Begins_With($needle, $haystack {
return (substr($haystack, 0, strlen($needle))==$needle);
}

代码如下:

function extract_emails($str){
// This regular expression extracts all emails from a string:
$regexp = '/([a-z0-9_\.\-])+\@(([a-z0-9\-])+\.)+([a-z0-9]{2,4})+/i';
preg_match_all($regexp, $str, $m);

return isset($m[0]) ? $m[0] : array();
}

$test_string = 'This is a test string...

test1@example.org

Test different formats:
test2@example.org;
<a href="/blog_article/test3@example.org">foobar</a>
<test4@example.org>

strange formats:
test5@example.org
test6[at]example.org
test7@example.net.org.com
test8@ example.org
test9@!foo!.org

foobar
';

print_r(extract_emails($test_string));

代码如下:

<?php
function smartDetectUTF8($string)
{
static $result = array();
if(! array_key_exists($key = md5($string), $result))
{
$utf8 = "
/^(?:
[\x09\x0A\x0D\x20-\x7E] # ASCII
| [\xC2-\xDF][\x80-\xBF] # non-overlong 2-byte
| \xE0[\xA0-\xBF][\x80-\xBF] # excluding overlongs
| [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2} # straight 3-byte
| \xED[\x80-\x9F][\x80-\xBF] # excluding surrogates
| \xF0[\x90-\xBF][\x80-\xBF]{2} # planes 1-3
| [\xF1-\xF3][\x80-\xBF]{3} # planes 4-15
| \xF4[\x80-\x8F][\x80-\xBF]{2} # plane 16
)+$/xs
";
$result[$key] = preg_match(trim($utf8), $string);
}
return $result[$key];
}
function smartStrlen($string)
{
$result = 0;
$number = smartDetectUTF8($string) ? 3 : 2;
for($i = 0; $i < strlen($string); $i += $bytes)
{
$bytes = ord(substr($string, $i, 1)) > 127 ? $number : 1;
$result += $bytes > 1 ? 1.0 : 0.5;
}
return $result;
}
function smartSubstr($string, $start, $length = null)
{
$result = '';
$number = smartDetectUTF8($string) ? 3 : 2;
if($start < 0)
{
$start = max(smartStrlen($string) + $start, 0);
}
for($i = 0; $i < strlen($string); $i += $bytes)
{
if($start <= 0)
{
break;
}
$bytes = ord(substr($string, $i, 1)) > 127 ? $number : 1;
$start -= $bytes > 1 ? 1.0 : 0.5;
}
if(is_null($length))
{
$result = substr($string, $i);
}
else
{
for($j = $i; $j < strlen($string); $j += $bytes)
{
if($length <= 0)
{
break;
}
if(($bytes = ord(substr($string, $j, 1)) > 127 ? $number : 1) > 1)
{
if($length < 1.0)
{
break;
}
$result .= substr($string, $j, $bytes);
$length -= 1.0;
}
else
{
$result .= substr($string, $j, 1);
$length -= 0.5;
}
}
}
return $result;
}
function smarty_modifier_smartTruncate($string, $length = 80, $etc = '...',
$break_words = false, $middle = false)
{
if ($length == 0)
return '';
if (smartStrlen($string) > $length) {
$length -= smartStrlen($etc);
if (!$break_words && !$middle) {
$string = preg_replace('/\s+?(\S+)?$/', '', smartSubstr($string, 0, $length+1));
}
if(!$middle) {
return smartSubstr($string, 0, $length).$etc;
} else {
return smartSubstr($string, 0, $length/2) . $etc . smartSubstr($string, -$length/2);
}
} else {
return $string;
}
}
?>