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How can one check to see if a remote file exists using PHP?
...$ch);
$retcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
// $retcode >= 400 -> not found, $retcode = 200, found.
curl_close($ch);
Anyway, you only save the cost of the HTTP transfer, not the TCP connection establishment and closing. And being favicons small, you might not see much improvement...
Is it possible only to declare a variable without assigning any value in Python?
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edited Mar 19 '09 at 22:50
answered Mar 19 '09 at 22:23
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scala vs java, performance and memory? [closed]
...come from strings of length greater than two. In Java, you might
int n = 0;
for (String s: array) {
if (s.length > 2 && mapping.containsKey(s)) n++;
}
String[] bigEnough = new String[n];
n = 0;
for (String s: array) {
if (s.length <= 2) continue;
bigEnough[n++] = map.get(s);
}
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C# generic type constraint for everything nullable
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answered Nov 7 '13 at 9:02
Matthew WatsonMatthew Watson
87.1k66 gold badges120120 silver badges211211 bronze badges
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Is there a constraint that restricts my generic method to numeric types?
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+100
C# does not support this. Hejlsberg has described the reasons for not implementing the feature in an interview with Bruce Eckel:
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How to add display:inline-block in a jQuery show() function?
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answered Feb 13 '12 at 12:01
RazzRazz
3,79511 gold badge1515 silver badges1515 bronze badges
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SQL Server - Create a copy of a database table and place it in the same database?
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– Simon Green
Oct 6 '15 at 19:04
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In Git, how can I write the current commit hash to a file in the same commit
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answered Aug 9 '10 at 19:30
CascabelCascabel
398k6464 gold badges352352 silver badges307307 bronze badges
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index.php not loading by default
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answered Mar 5 '10 at 3:48
John HimmelmanJohn Himmelman
19.5k1919 gold badges6060 silver badges7979 bronze badges
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jQuery: Wait/Delay 1 second without executing code
... // run when condition is met
}
else {
setTimeout(check, 1000); // check again in a second
}
}
check();
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