I have a function that checks the syntax of a string using preg_match. This
function is used in a loop and always hangs on the same string (7 out of
many more).
However, the function acts as expected when used individually on that string
(ie when the array of strings to loop on is reduced to just the "problem
string".
The string and the preg_match are:
$text = 'C56_3, C55_3, C57_3, C59_3, C58_3, C52_3, C50_3, C53_3, C54_3,
C51_3, C60_3, C2_3, C3_2, C7_2, C8_2, C5_2, C64_3, C61_3, C65_3, C67_3,
C66_3, C28_3, C29_3, C26_3, C27_3, C32_3, C33_3, C30_3, C31_3, C1_2, C4_2,
C6_2, C9_3, C24_3, C25_3, C22_3, C23_3, C44_3, C45_3, C42_3, C43_3, C48_3,
C49_3, C46_3, C47_3, C36_3, C37_3, C34_3, C35_3, C40_3, C41_3, C38_3, C39_3,
C41_2, C40_2, C43_2, C42_2, C39_2, C36_2, C35_2, C38_2, C37_2, C7_0, C48_2,
C11_0, C16_0, C47_2, C18_0, C44_2, C46_2, C45_2, C4_1, C27_2, C8_1, C3_1,
C26_2, C1_1, C23_2, C25_2, C24_2, C32_2, C31_2, C34_2, C33_2, C30_2, C6_1,
C28_2, C29_2, C5_1, C10_0, C19_0, C21_0, C22_0, C23_0, C59_2, C56_2, C55_2,
C58_2, C57_2, C66_2, C65_2, C1_0, C67_2, C64_2, C60_2, C20_0, C61_2, C15_0,
C12_0, C13_0, C17_0, C6_0, C14_0, C8_0, C9_0, C2_0, C3_0, C24_0, C52_2,
C54_2, C53_2, C51_2, C5_0, C4_0, C50_2, C49_2, C47_1, C48_1, C45_1, C46_1,
C49_1, C52_1, C53_1, C50_1, C51_1, C44_1, C37_1, C38_1, C35_1, C36_1, C39_1,
C42_1, C43_1, C40_1, C41_1, C5_3, C6_3, C66_1, C67_1, C8_3, C1_3, C7_3,
C3_3, C4_3, C65_1, C56_1, C57_1, C54_1, C55_1, C58_1, C61_1, C64_1, C59_1,
C60_1, C27_1, C26_1, C25_1, C28_1, C2_2, C30_1, C29_1, C2_1, C9_2, C7_1,
C22_1, C24_1, C23_1, C22_2, C31_1, C32_1, C33_1, C9_1, C34_1';
var_dump(preg_match('/^\W*(?:[A-Z]{1,4}\d{1,3}(?:_\d{1,2})?(?(?!\Z)\W+))+$/'
, $text));
Does anybody have any tips on what to try/look for?
Thanks,
Pascal
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