PHP Snippets
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Information
(PHP Version >= 4.0.4)Functions used in this snippet: array_sum, microtime, explode, number_format.
Description
float timer([float start,[int num]])
sets a start timer and outputs another timer less start to num decimals.
Snippet
<?php
function timer($start='',$num=8){
if($start === ''){
return array_sum(explode(' ',microtime()));
}else{
return number_format(timer() - $start,$num);
}
}
?>
Example
timer Can be used in the following way:
<?php
$start = timer();
// code to be timed goes here
echo timer($start); // shows elapsed time to 8 decimal places
$start = timer();
// code to be timed goes here
echo timer($start,12); // shows elapsed time to 12 decimal places
?>
Updated on Jul 1st at 4 am.
stri_replace
Information
(PHP Version >= 4.10)Functions used in this snippet: array_key_exists, count, is_array, array_keys, strtolower, str_replace, explode, strlen, substr.
Description
str stri_replace(mixed search, mixed replace, str subject)
replaces all occurances of search with replace in the subject string and returns the corrected string. It is done without regards to text case.
search and replace can bot be arrays.
Snippet
<?php
function stri_replace($word,$replace,$str){
$wordray = is_array($word) ? true : false;
$replray = is_array($replace) ? true: false;
if($wordray){
$wordkeys = array_keys($word);
$sizeword = count($wordkeys);
if($replray){
$replkeys = array_keys($replace);
$sizerepl = count($replace);
}
for($i=0; $i<$sizeword; $i++){
if($replray && array_key_exists($i,$replkeys)){
$repll = $replace[$replkeys[$i]];
}elseif($replray){
$repll = '';
}else{
$repll = $replace;
}
$str = stri_replace($word[$wordkeys[$i]],$repll,$str);
}
$ret = $str;
}else{
$str_low = strtolower($str);
$word_low = strtolower($word);
$str_low = str_replace($word_low,$word,$str_low);
$explode = explode($word,$str_low);
$count = count($explode);
$ret = '';
$holder = 0;
$len = strlen($word);
for($i=0; $i<$count; $i++){
$thislen = strlen($explode[$i]);
$ret .= substr($str,$holder,$thislen);
if($i !== ($count - 1)){
$ret .= $replace;
}
$holder = $holder + $thislen + $len;
}
}
return $ret;
}
?>
Example
stri_replace Can be used in the following way:
<?php
$str = 'I HAte Red and love Blue';
echo stri_replace('hate','despise',$str); // I despise Red and love Blue
echo stri_replace(array('hate','LOVE'), array('enjoy','despise'),$str);
// I enjoy Red and despise Blue
?>
Updated on Jun 25th at 1 am.
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