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Iterate over each line in a string in PHP
...is defined as "\r\n", strtok will separate on either character - and as of PHP4.1.0, skip empty lines/tokens.
See the strtok manual entry:
http://php.net/strtok
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...
sed one-liner to convert all uppercase to lowercase?
...
sed -e 's/.*/\L&/' input.txt > output.txt for GNU sed works fine too
– Asfand Qazi
Apr 13 '17 at 8:49
1
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How do you determine the size of a file in C?
...size(const char *filename) {
struct stat st;
if (stat(filename, &st) == 0)
return st.st_size;
return -1;
}
Changes:
Made the filename argument a const char.
Corrected the struct stat definition, which was missing the variable name.
Returns -1 on error instead of 0, wh...
How to process each line received as a result of grep command
...nd | grep --line-buffered "your search"
Real life exemple with a Symfony PHP Framework router debug command ouput, to grep all "api" related routes:
php bin/console d:r | grep --line-buffered "api"
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How do I send a cross-domain POST request via JavaScript?
...u accomplish the cross domain POST from from.com/1.html to to.com/postHere.php (using PHP as an example). Note: you only need to set Access-Control-Allow-Origin for NON OPTIONS requests - this example always sets all headers for a smaller code snippet.
In postHere.php setup the following:
switch ...
How do I write JSON data to a file?
...uper simple and easy to remember one:
import mpu.io
data = mpu.io.read('example.json')
mpu.io.write('example.json', data)
Created JSON file
{
"a list":[
1,
42,
3.141,
1337,
"help",
"€"
],
"a string":"bla",
"another dict":{
...
What is the strict aliasing rule?
... the strict aliasing rule was introduced.
Keep in mind, if you think the example is contrived, this might even happen if you're passing a buffer to another function doing the sending for you, if instead you have.
void SendMessage(uint32_t* buff, size_t size32)
{
for (int i = 0; i < size32; ++...
How can I output a UTF-8 CSV in PHP that Excel will read properly?
...his is to use tabs as your separated value.
I used this function from the PHP comments (using tabs "\t" instead of commas) and it worked perfectly on OS X and Windows Excel.
Note that to fix an issue with an empty column as the end of a row, that I did have to change the line of code that says:
...
Escaping single quote in PHP when inserting into MySQL [duplicate]
...se strings (in both snippets) with mysql_real_escape_string().
http://us3.php.net/mysql-real-escape-string
The reason your two queries are behaving differently is likely because you have magic_quotes_gpc turned on (which you should know is a bad idea). This means that strings gathered from $_GET,...
Using crontab to execute script every minute and another every 24 hours [closed]
I need a crontab syntax which should execute a specific PHP script /var/www/html/a.php every minute. The execution on every minute must start at 00:00. The other task which must execute a script at 00:00 /var/www/html/reset.php (once every 24 hours).
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